Ais Wallenstein is a central heroine of the light novel series “Is It Wrong to Try to Pick Up Girls in a Dungeon?” and the main protagonist of the side story “Sword Oratoria: Is it Wrong to Try to Pick Up Girls in a Dungeon? On the Side.”
She is a 16‑year‑old human first‑class adventurer of the Loki Familia, famed in Orario as the “Sword Princess” and feared by monsters as a near‑unstoppable slayer.
Name: Ais Wallenstein
Gender: Female
Age: 16
Race: Human
Height: 162 cm
Occupation: Adventurer
Affiliation: Loki Familia
Level: 5 → 6
Alias (Second Name): Sword Princess
Voice Actor (Japanese version): Saori Ōnishi
Ais is one of the main heroines of the main series and the sole protagonist of the side story “Sword Oratoria.”
Within Orario, she is one of the very few first‑class adventurers and a core executive member of the Loki Familia, one of the city’s largest factions.
She first meets Bell Cranel when she saves him at the last moment from a Minotaur in the Dungeon.
From that moment she becomes Bell’s “ideal” and object of admiration, later also becoming his combat teacher and slowly deepening their relationship.
The author has stated that Ais is the heroine he “wants to save last” in the main story.
Because her backstory is complex and much of it was pushed into the side story, the author has also admitted she can be harder for readers to emotionally connect with if they only follow the main series.
Ais is a beautiful girl with long golden hair and golden eyes.
Her looks are often said to rival those of goddesses, and many adventurers admire or idolize her.
Her usual outfit is a highly revealing white and blue armor dress that exposes her back and sides.
This is not her own fashion choice; Loki pressured her into wearing it, even threatening melodramatically to bite off her own tongue if Ais refused, so Ais wears it while feeling quite embarrassed.
In spinoff media and events, she also tries on more casual or cute clothes, which often leaves her and her companions flustered in different ways.
On the surface Ais appears quiet, distant, and somewhat mysterious.
In reality she is emotionally underdeveloped, shy, and poor at expressing herself, which makes her seem aloof and hard to read.
She is straightforward and honest to a fault, often acting before thinking and lacking social awareness.
Those around her therefore frequently view her as a natural airhead, even while recognizing her terrifying strength.
Despite her obsession with becoming stronger, Ais is fundamentally kind‑hearted.
She does not look down on the weak, and if she sees someone in trouble—regardless of Familia—she instinctively reaches out to help.
Her emotional growth was stunted by a childhood consumed by hatred of monsters.
Inside her heart she imagines a younger version of herself, a little girl who sometimes encourages her and sometimes tries to rein in her rampages; this inner child represents Ais’s true feelings and conscience.
Notably, her basic mental age has changed little since the era of the “Great War” in the series’ backstory.
As a result, even at 16 she often reacts to emotions and relationships with almost childlike confusion.
Ais may be a top‑class adventurer, but she has many surprising weak points.
These weaknesses often become sources of comedy—or disasters—for those around her.
Cannot Swim
Thanks to a traumatic “Spartan” training session by Riveria Ljos Alf involving water, Ais developed a phobia of getting her face wet.
If water splashes her face, she freezes up and sinks like a stone, so she avoids water areas in the Dungeon and uses magic instantly to escape if she falls in.
Severe Drunk
Ais is a notorious drunk.
As a child, some Familia members tricked her into drinking alcohol and she went on a rampage, actually cutting allies, after which a rule was established in the Loki Familia to never let Ais drink.
This condition has not improved with age.
In the village of Edas she accidentally drank alcohol and turned Bell into a human ragdoll, completely overwhelming him in her drunken fury.
To make matters worse, she always suffers total blackout.
She never remembers her rampages and assumes that the aftermath was caused by “some unknown attacker.”
Afraid of Ghosts
Ais is fine with monsters because she can cut them.
She is terrified of ghosts precisely because she believes she cannot cut them.
When she and Bell took a request from a child involving a haunted house, she panicked upon seeing a skeletal specter.
She reflexively unleashed her magic, blowing away Bell and the entire building in the process.
Terrible at Acting
Ais’s acting is famously wooden.
Because she is socially awkward and expressionless, any lines she speaks in “character” come out completely flat.
She has been called a hopeless “wooden actress” in event stories of the mobile game “Memoria Freese.”
When she once received a premium Jaga Maru‑kun (her favorite food) in a drama CD, she temporarily showed a miraculous improvement in acting, suggesting food may be a key buff.
No Artistic Sense
In the Memoria Freese event “Prank of the Creator Gods,” Ais drew an Almiraj at Raul Nord’s request.
Her drawing was roasted as “charcoal,” “a pill bug,” “Gareth’s eyebrow,” and “a rotten rainbow,” revealing that she essentially has no drawing skill.
Almost everything about Ais’s birth and origins is shrouded in mystery.
The only characters explicitly stated to know the full truth are Loki, Finn Deimne, Riveria Ljos Alf, Gareth Landrock, and the city’s founding god Uranus.
From fragments revealed in “Sword Oratoria,” Ais’s mother shares her name with “Aria,” the wind spirit heroine of an ancient heroic tale titled “Holy Dungeon Tale.”
Her father is implied to be Albert, a legendary hero said to be one of the strongest in history.
However, spirits are not supposed to be capable of bearing children, and Albert is a figure from ancient times.
Riveria has nonetheless confirmed that “there is no doubt” that spirit blood flows in Ais’s veins.
The former chief gods of the two greatest fallen Familias, Zeus and Hera, also appear to know something about Ais.
Zeus passed information about her to Hermes, and Alfia, a former Hera Familia executive, reacted to Ais with surprise, asking Riveria whether she would be used as a “sacrifice.”
A hidden region between the 60th and 61st Dungeon floors, called the “Thousand Azure Garden,” is connected to Ais.
This strange area regards Ais as a “protected target,” and Riveria’s reactions suggest that the place is also linked to a high elf princess named Seldia, one of Albert’s past companions.
All of this hints that Ais is deeply tied to the Dungeon’s history, the black dragon, and the lost age of heroes.
The author has stated he wants to reveal Ais’s full past properly in the main series rather than the side story.
From childhood, Ais was consumed by an abnormal hatred of monsters.
She became an adventurer specifically to acquire power for revenge.
She swore to herself that “monsters must always be killed,” a personal vow that both supports her and binds her like a curse.
Her obsession with strength is extreme; she spends nearly all her time training or delving into the Dungeon.
Though she has mellowed somewhat through interactions with her companions, her hatred of monsters has never vanished.
She still pushes herself to reckless extremes in her pursuit of strength.
At times her revenge‑driven side surfaces as something close to madness.
Other characters have described her as “a berserker wearing a girl’s skin,” “far more monstrous than any monster,” and “a slaughterer, a monster slayer.”
The root of her hatred seems linked to the “one‑eyed black dragon,” one of the world’s three grand quests.
The details remain unknown, but flashbacks and spell effects strongly imply that this dragon destroyed her family.
Her encounter with Wiene, a dragon‑type “Xenos” (a thinking monster), finally cracks this absolute hatred.
Seeing a monster who loves and sacrifices herself for others forces Ais, for the first time, to doubt her vow that all monsters must die.
Bell Cranel
Bell is the boy Ais saves from a Minotaur on an upper floor of the Dungeon.
He instantly falls in love with her, while Ais initially believes he ran away out of fear of her, which hurts her feelings.
Over time she becomes increasingly interested in Bell’s pure heart and explosive growth.
She volunteers to train him, becomes his “combat teacher,” and starts to feel emotions toward him she does not fully understand.
Ais is protective and supportive of Bell, and deeply impressed by his determination.
At the same time, she is bewildered by her own jealousy and confusion whenever other women approach him.
The author has confirmed that Ais and Bell’s compatibility is very good.
Much of Ais’s late character development revolves around Bell challenging her views on monsters and heroes and, eventually, literally rescuing her from within a spirit’s heart.
Riveria Ljos Alf
Riveria is Ais’s mentor, guardian, and “mother figure” within the Loki Familia.
She raised Ais from childhood, endured her stubbornness, and patiently guided her from a revenge‑obsessed “doll” into a more balanced person.
Their bond is among the strongest in the entire Familia.
Others often remark that they look like a real mother and daughter.
Riveria is also the one who taught Ais her magic, Ariel, during a life‑or‑death battle.
She remains the person who most deeply understands Ais’s emotional scars and dangerous potential.
Tiona Hiryute and Tione Hiryute
The amazonian twin sisters Tiona and Tione are Ais’s close teammates and best friends.
They spend much of their time together during expeditions and in everyday life.
Through them Ais learns to interact more casually, joke, and enjoy normal teenage things.
Their presence greatly stabilizes Ais’s mental state and helps shape her current gentler demeanor.
Lefiya Viridis
Lefiya is Ais’s junior in the Loki Familia and an aspiring mage who idolizes Ais to an extreme degree.
Ais is often overwhelmed by Lefiya’s intensity but sees her as a precious companion, and they frequently act together with Tiona and Tione.
Having Lefiya as a junior makes Ais more conscious of protecting others instead of fighting purely for herself.
This subtly shifts her combat style from purely self‑centered offense toward supporting her allies.
Bete Loga
Bete Loga is a fellow executive of the Loki Familia and secretly harbors feelings for Ais.
He occasionally tries to get close to her, but his rough manner often only annoys her.
Even so, Ais senses a kind of kinship with him.
Like her, Bete became an adventurer driven by revenge against monsters and is obsessed with strength.
In her natural cluelessness, Ais once mistakenly thought Bell’s “idol” was Bete.
This misunderstanding led her to feel an odd sense of rivalry with Bete over Bell.
Loki
Loki is Ais’s goddess and the head of her Familia.
Loki dotes on Ais the most among her children and frequently harasses her with playful, sometimes lewd teasing—usually earning a physical rebuke from Ais.
Ais does not especially respect Loki’s personality, but she strongly trusts Loki’s care for the Familia.
Loki is one of the few who fully knows Ais’s secrets and cautions her that “anyone who keeps running at full speed without looking ahead will eventually stumble.”
Hestia
Hestia is Bell’s goddess and initially sees Ais as a rival for Bell’s affection.
She sarcastically calls Ais “that Wallen‑something,” and burns with jealousy because Ais is Bell’s object of admiration.
Ais remains polite and respectful toward Hestia, recognizing her as a good goddess.
Hestia, though wary, acknowledges Ais’s character and admits that they would get along well if Bell were not involved.
Ryuu Lion
Ryuu Lion is another woman who protects and guides Bell.
She and Ais share many parallels: a past consumed by revenge, emotional stagnation, and a life restarted thanks to meeting Bell.
When they have a quiet conversation alone, Ais views Ryuu as akin to an “older cousin” watching over her younger relative.
Their raw combat talents as adventurers are said to be roughly equivalent.
Wiene
Wiene is a young dragon‑type Xenos whose existence shakes Ais to her core.
She is a monster, yet kind, self‑sacrificing, and deeply attached to Bell, even willing to tear off her own claws and wings to not frighten others.
Seeing Wiene forces Ais to confront the possibility that not all monsters are mindless enemies.
This clash between Ais’s vow and Wiene’s humanity leads to a breakdown, a cry for help (“Someone… please save me”), and later to Ais seeking a healthier way to channel her power.
Revis
Revis is Ais’s “enemy” rather than a true rival—a cold, cruel woman tied to the “Corrupted Spirit.”
They fight repeatedly in the side story, with Revis knowing Ais’s mother’s name and calling Ais “Aria,” hinting at deep connections.
Their final duel during the “Mad War Saga” is a brutal clash of everything both have become.
Ais’s victory, achieved by transforming her “black wind” into a “white wind,” symbolizes her step away from pure hatred toward a more balanced strength.
Childhood and Joining the Loki Familia
At age 7, Ais loses her parents under mysterious circumstances and is taken in by the Loki Familia.
Already burning with hatred for monsters, she decides to become an adventurer for the sake of revenge.
Loki warns her that once a god inscribes the Falna (divine blessing), there is no turning back.
Ais accepts without hesitation and receives her status—along with a terrifyingly powerful anti‑monster skill, Avenger, right from the start.
As a novice adventurer, Ais quickly proves her massive talent.
But she neglects sleep and food, living only to train and hunt monsters, and ignores almost all human interaction.
Because she fights endlessly with a blank expression, other adventurers call her the “Doll Princess.”
Riveria, assigned as her mentor, is at a loss over how to deal with this overly extreme, self‑destructive child.
Over time, the unconditional support and affection of Riveria and others gradually soften Ais.
She begins to care for her own health and take interest in people again, slowly regaining her “humanity.”
Early Level Ups and First Use of Magic
Within about a year, Ais hits the stat cap for Level 1 and can no longer grow without ranking up.
Impatient, she wants to reach Level 2 as quickly as possible.
Riveria and the executives fear that if they tell her the truth—that one must accomplish “great deeds” and defeat stronger foes—Ais will do something extreme.
They dodge the question, prompting Ais to run away from home to figure it out herself.
On the road she meets Hermes, who has been pre‑briefed about her by Zeus.
Intrigued by her potential to become a “hero,” Hermes explains how rank ups work.
Ais immediately goes to fight an Infant Dragon, the strongest monster on the upper floors, all by herself.
Riveria scolds her fiercely afterward, and they have a huge argument.
After storming off into the Dungeon again, Ais encounters the evil god Thanatos.
He attempts to recruit her, offering fast power in exchange for aligning with him.
Tempted but remembering her Familia, Ais refuses to betray them.
Thanatos responds by releasing his divine aura, provoking the Dungeon into producing a powerful black Wyvern.
Seeing a black dragon makes Ais lose control; she attacks but is overwhelmed.
At the last moment, Riveria arrives and, in desperation, teaches Ais the chant for her first magic: Ariel.
Ais calls the wind, feels a warmth like her mother’s embrace, and drives back the Wyvern.
Realizing she is not alone, she breaks down in tears and clings to Riveria, cementing their bond.
These events provide the “great deed” needed, and Ais ranks up to Level 2 in record time—only one year after becoming an adventurer.
The Dark Age and Early Fame
By age 9, Ais has already reached Level 3.
Though Riveria wanted to keep her away from killing humans, the “Dark Age” crisis forces Finn to deploy Ais into battle against the evil faction.
She participates in the climactic “Battle of Right and Wrong,” fighting under strict orders to spare human lives.
Even with that limitation, she neutralizes many enemy units and helps defeat the monstrous “Tentacles of the Divine Beast.”
According to Hermes, she reaches Level 4 not long after that war.
By the time of the main story, she is a famous first‑class adventurer and one of Orario’s top combatants.
Saving Bell and Becoming His Idol
During a deep expedition to the 50th floor, the Loki Familia is attacked by a mysterious prismatic monster.
After fierce fighting, Ais finishes it with her signature thrust, Lil Rafaga.
On the way back, a pack of Minotaurs escapes from them and runs to the upper floors.
To prevent civilian casualties caused by their own mistake, Loki’s party splits to hunt them down.
Pursuing them to the 5th floor, Ais finds a terrified novice—Bell—cornered by a Minotaur.
She cuts down the beast in one stroke and offers her hand to the boy.
Overwhelmed and humiliated, Bell panics and runs away.
Ais misinterprets his reaction as fear of her and is quietly crushed.
Later, while celebrating at the hostelry “The Benevolent Mistress,” Bete drunkenly mocks the “wimpy rookie” who fled from a Minotaur.
Ais feels intense discomfort and guilt, wanting to apologize to Bell for humiliating him.
Monsterphilia and the Prismatic Flower
During the Monsterphilia festival, Ais is assigned to accompany Loki.
When a god’s scheme causes monsters to escape into the city, Ais and her companions quickly clean up.
Separately, a prismatic plant monster called “Violas” appears, unrelated to the main plot of the festival.
Ais, Tiona, Tione, and Lefiya battle it; lacking proper weapons, they struggle to damage its sturdy body.
Lefiya ultimately annihilates it with a powerful spell.
Ais notes the similarity of this prismatic monster to the one on the 50th floor, marking the beginning of the “Corrupted Spirit” arc.
Meeting Revis and the 37th‑Floor Boss
When Ais goes to the “Rivira” town on the 18th floor, she gets pulled into a murder investigation revolving around a mysterious green gem.
While escorting the gem with Lefiya, they are ambushed by an enigmatic woman: Revis.
Revis sees Ais’s wind and calls her “Aria,” revealing knowledge of Ais’s mother.
Shaken, Ais uses Ariel despite her reluctance to employ such force in a human duel, but even with magic she cannot defeat Revis.
Saved by Finn and Riveria, Ais is left seething with powerlessness and longing to know the truth behind Revis’s words.
She decides to seek a worthy “great deed” by soloing a floor boss.
Ais descends to the 37th floor to challenge the boss Udaeus alone.
With Ariel and support magic from Riveria, she pushes her body past its limits and barely manages to slay the boss.
Afterward, Riveria comforts her through her injuries and worry about Revis.
Upon updating her status, Ais achieves Level 6.
Teaching Bell and Witnessing His Adventure
On her way back from the deep floors, Ais finds Bell passed out from mind depletion near the upper floors.
Wanting to finally apologize for the Minotaur incident, she stays and waits for him to wake up, only for him to flee again in embarrassment.
The next day she hears from Eina Tulle that Bell is in trouble with another Familia and is delving unusually deep for his level.
She searches the Dungeon for him and is stunned to learn he has reached the 10th floor as a novice.
After helping Bell fend off an orc horde, Ais loses him again as he rushes to find Liliruca Arde.
Soon afterward, Fels appears and requests that Ais investigate a massive abnormality on the 24th floor, linked to monster food storages and the green crystal.
There she joins forces with Asfi Al Andromeda and the Hermes Familia, destroys a huge monster horde, and confronts Revis again.
This time, as a Level 6, Ais fights Revis to a standstill until Revis collapses the area and retreats, leaving Ais with a clue: the 59th floor holds secrets she wants.
Back on the surface, Ais meets Bell in the Guild again.
She finally manages to apologize for their first encounter, and, intrigued by his growth, she asks if she can train him until the next expedition.
They train atop Orario’s city walls to avoid attracting attention.
Despite attempts to keep it secret, Lefiya soon discovers them, and even agents of Freya come to test Bell, causing numerous hijinks.
Later, during a Minotaur encounter arranged as Bell’s trial, Ais and Loki Familia rush to help but are blocked by Ottar.
After a fierce clash, Ais arrives just in time to see Bell choose to face the Minotaur alone.
She sees in his back the image of her father going to his last fight.
Unable to stop him, she and her companions watch Bell’s heroic victory with awe as he defeats the Minotaur against all odds.
The Deep Expedition and Demi‑Spirit Battle
On the 52nd–58th floors (“Dragon’s Urn”), Ais and the expedition fight through powerful dragons and deep‑floor monsters.
Finally reaching the 59th floor, they encounter a Demi‑Spirit sent by the mysterious Enyo.
The Demi‑Spirit, a fragment of a corrupted spirit, possesses power surpassing even floor bosses and bombards them with devastating magic.
The party is nearly crushed until Finn taunts them by referencing Bell’s Minotaur feat, reigniting their resolve.
With the party’s support, Ais closes the distance and unleashes Lil Rafaga at full power.
She pierces and destroys the Demi‑Spirit, ending the threat and proving herself at the cutting edge of Orario’s might.
On the way back, a massive army of poison‑spitting worms forces the expedition to retreat to the “Paradise of the Labyrinth” on the 18th floor.
There she helps treat Bell’s party, and later spends peaceful time with Bell exploring Rivira.
Knossos, the Evil Faction, and the First Defeat
The Loki Familia discovers the entrance to “Knossos,” a man‑made labyrinth beneath Daedalus Street used by the surviving evil faction.
Ais takes part in the first assault, but the party is separated, confronted by trap‑laden corridors, suicide bombers, and monsters.
Revis, now empowered to near Level 7, severely injures Ais in a one‑sided fight.
Ais uses Ariel to send guiding wind through Knossos, allowing her scattered allies to regroup, but this also triggers the rampage of a Demi‑Spirit bull, Gugalanas.
The first Knossos expedition ends in failure, with casualties including the death of Lene at the hands of Valetta.
It is one of the few times the Loki Familia suffers a clear defeat, and it leaves deep scars on Ais and her companions.
War with the Rakia Kingdom and the Edas Village
While still seeking the key item “Daedalus Orb” to conquer Knossos, the Loki Familia is dragged into a war.
The war god Ares invades Orario with the Rakia Kingdom, forcing the city’s forces to respond.
The battle is one‑sided; Orario’s adventurers are vastly superior.
In the chaos, Ares kidnaps Hestia, prompting Ais and Bell to pursue and rescue her.
They succeed, but Hestia needs rest, so the group stays in the rural Edas village.
There Ais learns that the village is protected by a scale of the very black dragon she hates most, revered as a sacred charm.
This revelation deeply unsettles Ais, who struggles to reconcile her hatred with the villagers’ gratitude toward the scale.
Through conversations with village elder Calm and Hestia, she regains some emotional balance.
After Hestia recovers and the war ends, they return to Orario.
Xenos Conflict and Emotional Breakdown
Later, armed monsters known as “Xenos” appear on the 18th floor, causing a citywide incident.
Seeing a chance to access Daedalus Street, the Loki Familia mobilizes to intercept them.
In Daedalus Street’s flooding chaos, Ais encounters Bell protecting a veiled female monster—Wiene, a young Vouivre Xenos.
She also observes Xenos acting cooperatively, caring for one another like humans.
This shakes her to the core.
Her vow that all monsters must be killed clashes with the evidence in front of her eyes.
During a later operation, Ais duels Ryuu Lion, who is boosted temporarily to around Level 5 by Haruhime Sanjouno’s “Level Boost.”
Ais defeats Ryuu quickly and resumes the chase.
When she catches up to Bell and Wiene and sees them openly express mutual care, her confusion peaks.
She cannot accept a monster showing such humanity and moves to kill Wiene as a “danger.”
Bell, wounded and outmatched, nonetheless stands in her way.
Despite vastly inferior stats, his resolve and desperation gain him a single, shocking hit on Ais.
Ais argues that monsters are dangerous and that protecting them is wrong.
Bell replies that humans without love and compassion are no different from monsters, a statement that hits Ais especially hard given her current fight against human “evil faction” villains.
Even so, she tries to force herself to uphold her vow and almost attacks Bell in earnest.
Then Wiene appears and, when told that her claws and wings frighten people, tears them off herself, sobbing but determined to stay with Bell.
In that sight Ais sees her own childhood, when no hero came to save her.
Faced with Wiene’s courage and Bell’s devotion, Ais’s will breaks; she steps aside and lets them go.
Afterward, wracked with guilt for breaking her vow and haunted by envy that Wiene was saved by a hero when she was not, Ais whispers, “Someone… please save me.”
This marks the emotional low point that will later push her toward a new path.
Training with Ottar
In the aftermath, Finn decides to cooperate with the Xenos to conquer Knossos.
Ais, still shaken, drifts in a daze.
After Riveria gently pushes her forward, Ais goes to see Bell, and they reconcile atop the city wall.
Bell asks her once more to teach him, and Ais agrees, choosing to move forward again.
She then walks straight into Freya Familia’s home and asks Ottar, the city’s strongest adventurer, to train her.
Despite objections from Allen Fromel and others, Freya accepts on one condition: Ais must grant her one wish in the future.
For about a week, Ottar pushes Ais to the limit.
He correctly identifies her “hesitation” after meeting the Xenos and tells her to pour everything out, but to rule her rage rather than be ruled by it.
His advice becomes the foundation for how she later harnesses her Avenger skill without being consumed by it.
Ais learns to fight not only as a vessel of hatred but as someone who chooses when and how to unleash that power.
The Second and Third Knossos Operations and the Mad War Saga
During the second Knossos operation, Ais stands off against Revis again, but this time Revis strangely does not attack.
The standoff ends when a hidden “altar” triggers the spread of devouring green flesh throughout the labyrinth, forcing a retreat.
Soon afterward, the enemy plan becomes clear: using six Demi‑Spirits to create a grand ritual, “Hexa‑Circle of Spirits,” capable of destroying Orario.
To stop this apocalyptic plot, Loki Familia and allied factions launch a final all‑out assault, the “Mad War Saga.”
Ais enters Knossos with Riveria’s second unit.
Revis appears, and Ais sends Riveria and the others ahead while she settles things with her nemesis.
She activates a forbidden combination: Ariel infused with Avenger, creating the “black wind.”
This dramatically boosts her power, enabling even the destruction of adamantite, but it tears at her body and inflames her hatred.
As she starts to lose herself to rage, Bell’s heroic skill “Argonaut” rings throughout Knossos like a giant bell, calming her heart.
The black wind transforms into a “white wind,” a purified force driven by resolve rather than revenge.
With this white wind, Ais delivers a final decisive blow and defeats Revis once and for all.
Afterward she finds Bell exhausted, and, thankful that he “saved her,” she lies down beside him and falls asleep.
Goddess Festival and Freya’s “Garden Box”
After recovering, Ais enjoys the Goddess Festival by going on a Jaga Maru‑kun food stall tour.
There she bumps into Bell and Syr Flover on what looks like a date.
Syr clings to Bell, and Ais, flustered, is dragged by Hestia into tailing them.
On a riverboat restaurant, their awkward spying is cut short by a sudden Freya Familia raid targeting Bell.
Ais immediately defends him, but she loses track of Bell and Syr in the confusion.
The next day, when Bell still hasn’t returned, she and Hestia search for him again, eventually encountering Bell and Syr while being chased by Freya’s high‑ranking followers.
Ais helps stall Freya’s executives with Asfi, but they cannot fully stop them.
Bell ultimately returns, but having rejected Syr’s confession out of loyalty to his feelings for Ais, he is left carrying heavy guilt—something Ais notices but doesn’t yet understand.
Freya then takes extreme measures: she uses her charm authority to rewrite the memories of everyone in Orario, creating a “Garden Box” in which Bell has always been her child.
Ais’s memories of Bell are erased along with everyone else’s.
Despite this, Ais unconsciously wanders to her and Bell’s old training spot on the city wall.
There, Hestia appears and, desperate, asks Ais not to meet Bell, fearing that being rejected by his idol would break him.
Ais agrees, even though she doesn’t know why it feels so wrong.
Later, when Bell, clinging to the truth, comes to her and asks, “Do you remember your time with me?” she instinctively grabs his hand and says, “Training, shall we?”
As she speaks, she starts listing things she should not remember—moments from their real past.
This convinces Bell that his memories are real and not illusions, emotionally saving him from despair.
That night, Hestia invokes her own divine authority to burn away Freya’s charm.
Memories return to Orario, including Ais’s.
Enraged, Ais storms Freya Familia’s home, saves Ryuu from death, and fights alongside Tiona and Tione to reach Bell.
This leads directly into the “Faction War” between Hestia’s coalition and Freya’s Familia.
Faction War and Helplessness
To prevent both top Familias from annihilating each other, the Guild forbids Loki Familia from joining the Faction War.
On top of that, Freya cashes in her earlier “one wish,” ordering that Ais must not involve herself in anything related to Bell until the War Game ends.
Ottar delivers the order: for the duration of the “War Game,” Ais must not take part in any action involving Bell Cranel.
Powerless to help, she can only watch the battle through the divine mirrors.
During the fight she sees Bell being pushed to the brink by Ottar’s brutal “baptism.”
Unable to intervene, she clenches her fists until they bleed, begging him silently to endure.
When Ryuu, Mia, and even Hedin Selland turn the tide in Bell’s favor, Ais cheers for him until her voice gives out.
After the coalition’s victory, her voice is so hoarse that she’s too embarrassed to meet Bell for a while.
Training with Bell Again and the Descent to the “Demon World”
Before their next deep‑floor expedition to exterminate the “Corrupted Spirit,” Loki Familia has some downtime.
Ais’s voice finally recovers, and she decides to honor her promise to train Bell again.
She nervously goes to the Hestia Familia home but is literally thrown out by a jealous Hestia.
On her way back, she bumps into Bell and seizes the chance to invite him to train.
On the city wall, she finds that Bell, now Level 5, is strong enough to match and even pressure her at times.
Excited, she escalates by using Ariel and accidentally knocks him out, misjudging the power gap.
For the remaining two days before her expedition, they continue sparring.
Ais jokingly calls Bell a “cheater” or “delinquent” when she finds he’s been thinking of other teachers during their training, and beats him senselessly in mock punishment, all while clearly enjoying their time together.
Then Loki Familia begins its expedition to the 60th floor, which has been transformed into a “Demon World” under the Corrupted Spirit’s influence.
They fight parasitic monsters like Varesite and a centipede dragon fused with a Demi‑Spirit, prevailing with help from allied Familias.
Finally they reach the heart of the Demon World and find the Corrupted Spirit itself.
The entity calls out to “Revis,” revealing that its various bodies, including Revis, were created by splitting the soul of an adventurer named Revinus Dardal and embedding the fragments into magic stones and corpses.
The “seventh Revis,” occupying the body of a dead Dionysus Familia member, is quickly slain by Bete—she is only Level 2, after all.
But with her dying act she uses a curse, Testars Ruin, on Ais.
The curse forces Ais to relive the terror and despair of being slain by a dragon, overlaying her trauma with Revis’s.
Ais loses control; her magic surges, creating a storm that blasts everyone away.
The Corrupted Spirit seizes the chance, trying to devour Ais.
Finn, Gareth, and Riveria struggle against the storm and reach for her.
At that moment the Thousand Azure Garden, positioned beneath them, detects that its protected subject is in mortal danger.
It activates its defense: encasing Ais in a block of ice to shield her from all threats.
This protective action blocks Riveria’s and the others’ hands.
The Corrupted Spirit snaps up the ice sphere containing Ais and swallows it, absorbing both the ice and Ais.
Empowered by Ais’s magic, the Corrupted Spirit transforms the entire 60th floor into a complete Demon World, pushing Loki Familia into a nearly hopeless situation.
Finn manages to stave off total annihilation with a massive spell, but the main vanguard is scattered, and their survival status is unknown for a while.
Inside the Spirit, Ais’s body remains intact thanks to the ice shell, but the Spirit steadily siphons her power.
Cracks spread through the ice, and Ais is trapped in a dreamlike inner world, reverted to her child self and tormented by nightmares.
In the bonus story “Does Ais Wallenstein Dream of a White You?”, we see that the Spirit keeps draining her magic while Avenger, her own skill manifesting as a second self, begins to feed back on it.
At a critical moment, when the Spirit tries to draw even more power from Ais, Avenger reverses the flow and starts draining the Spirit, forcing it to cut off the connection.
Meanwhile, Bell reaches the Spirit’s core and finds Ais’s heart, represented as a child in a birdcage hugging a “rabbit plushie” symbolic of Bell.
When she asks, “Will you become my hero?” Bell answers, “I want to be your hero,” shattering the Thousand Azure barriers and freeing her.
Together they fall from the disintegrating heart of the Corrupted Spirit.
With support from Lefiya’s and Bell’s magic, the Spirit is finally annihilated, and Bete and Tiona safely catch both Ais and Bell as they plummet.
Ais remains unconscious for the rest of the return journey, cradled by Riveria.
Even after being placed in the Dian Cecht Familia’s clinic, she still has not awakened, leaving her ultimate condition unresolved.
Ais fights primarily as a one‑handed sword specialist.
Her raw stats and technique, combined with her magic and skills, make her one of the most lethal adventurers in Orario.
Her base stats emphasize Dexterity, Agility, and Magic over raw Strength and Endurance.
With Ariel and Avenger, she repeatedly performs feats beyond her nominal level.
Ottar notes that Ais’s sword is not a “sword for fighting humans,” but a “sword for killing monsters.”
In pure anti‑monster combat, he believes she surpasses even himself and other ancient veterans like Finn.
Canon examples include soloing the deep‑floor boss Udaeus as a Level 5 and matching Level 7‑class foes like Asterius and Revis while still Level 6.
She is especially terrifying against dragons, thanks to Avenger’s special effect.
Signature Technique: Lil Rafaga
Lil Rafaga is Ais’s iconic finishing move, a piercing thrust performed while wrapped in Ariel’s wind.
She transforms into a high‑speed spiral of cutting wind that can easily pierce giant monsters.
Loki named the technique and jokingly told Ais that “saying the name makes it stronger.”
Ais believed her, so she always calls out the move name when using it.
Below are her known fully updated status values at various levels.
Values are in series terms: Strength, Endurance, Dexterity, Agility, Magic.
Level 1 (Final Values)
Strength: C 609
Endurance: D 580
Dexterity: B 798
Agility: A 818
Magic: H 100
Level 5 (Final Values)
Strength: D 564
Endurance: D 563
Dexterity: A 827
Agility: A 824
Magic: S 900
Development Abilities: Hunter, Abnormal Resistance, Swordsman
Level 6 (Sword Oratoria Volume 11)
Strength: H 154
Endurance: H 153
Dexterity: H 189
Agility: H 174
Magic: G 202
Development Abilities: Hunter, Abnormal Resistance, Swordsman, Spirit Healing
Avenger (Revenge Princess)
Avenger is Ais’s unique personal skill, born from her deep hatred of monsters.
It manifested immediately when she received Loki’s Falna, which is extremely rare.
Effects:
Can be activated at will.
Greatly increases attack power against “monster species” in general.
Enormously boosts attack power against dragon‑type enemies.
The amplification scales with the intensity of her hatred.
Within the history of the gods’ era, Avenger ranks among the highest‑output skills ever recorded.
When Ais first used it as a brand‑new adventurer, she obliterated a monster in a single hit.
However, while active it amplifies her anger and hatred.
Prolonged use risks making her lose herself and go berserk.
Moreover, it only works against monsters, not human opponents.
Because of its side effects, Ais generally avoids using Avenger unless absolutely necessary.
Hunter
A rare ability that appears when ranking up to Level 2.
It boosts Ais’s combat power against monsters she has previously fought and gained experience from, rewarding repeat hunts.
Its conditions—killing many monsters in a short time—are hard to meet, underscoring how relentless Ais was in her early days.
Abnormal Resistance
This ability reduces or negates various status ailments and abnormal conditions.
It helps her survive in the deep Dungeon where poisons and curses are common.
Swordsman
While not fully detailed in the text, Swordsman is believed to enhance her capabilities when fighting with a sword.
Given her style, it synergizes perfectly with her entire kit.
Spirit Healing
Spirit Healing allows slow automatic recovery of Mind (magical stamina) even without rest.
It is highly prized by mages, and within the Loki Familia only Ais and Riveria possess it.
The ability likely arose from Ais casting Ariel repeatedly over many years.
It lets her maintain high combat tempo far longer than ordinary adventurers.
Ariel
Chant: “Awaken, Tempest.”
Ariel is a wind‑attribute enchantment magic.
When activated, it wraps Ais’s body and sword in powerful wind, forming an offensive‑defensive “wind armor.”
Under Ariel, her speed, cutting power, and defense all increase dramatically.
Though efficient in Mind cost, the strain on her body is high and limits how long she can sustain it.
Ariel is also extremely hard on ordinary weapons.
Only blades with special durability—like her orichalcum sword Desperate—can withstand its full output.
Because of her spirit blood, Ais’s Ariel is absurdly powerful despite its ultra‑short chant.
At maximum output it becomes a true storm, altering the battlefield itself.
Black Wind
By chanting “Activate—Avenger” while invoking Ariel, Ais fuses her magic with her Avenger skill.
The wind turns black, becoming the “Black Wind.”
The Black Wind far surpasses normal Ariel in power.
Its destructive force is great enough to pulverize even adamantite, which first‑class adventurers usually struggle to damage.
By calling “Roar, Nizel,” she can also detonate the wind for explosive attacks.
Used in her last battle with Revis, this power allowed her to match Level 7 opponents.
The drawbacks are severe.
The physical backlash is extreme, fracturing her bones and damaging organs; after using it, she suffered days of agonizing pain and high fever.
Dian Cecht Familia’s healer Amid notes that even Ais’s “soul” appeared damaged.
Combined with Avenger’s emotional side effects, Black Wind is a weapon that can destroy its user as easily as her enemies.
White Wind
Though not given a formal label in the text, fans refer to the purified form of Ariel plus Avenger as “White Wind.”
After Bell’s Argonaut calms her, the blackened hatred‑driven wind becomes clear and white.
This White Wind retains great power but is guided by conviction rather than spite.
It symbolizes Ais’s step toward a healthier, self‑chosen strength, and is the force she uses to defeat Revis for good.
Desperate
Desperate is Ais’s main sword, a one‑handed saber forged from orichalcum.
It is a “superior” weapon imbued with the “unbreakable” property, making it extremely resistant to damage.
Even unbreakable weapons eventually dull, so Ais periodically has it sharpened by the craft god Gobnue’s Familia.
By Level 3 she is already wielding Desperate, and it has been her partner ever since.
Compared to other first‑class weapons, its raw attack power is a bit lower.
However, its durability allows it to survive Ariel’s immense wind forces, which would shatter most blades.
Black Wind is another matter; Desperate has cracked under its stress during both the Dark Age’s final battle and the fight with Revis.
After the latter battle, Gobnue chooses to essentially rebuild the weapon rather than simply repair it.
The result is “Desperate: Modified,” with improved sharpness and resistance even to corrosive fluids from Corrupted‑Spirit monsters.
It is one of the few weapons capable of supporting Ais’s absolute limit output.
The name “Desperate” is derived from the old word “desperate,” meaning “driven by despair” or “reckless person in a hopeless situation.”
It poignantly reflects Ais’s past as a child driven only by hopeless revenge.
Sword Ale
Sword Ale is Ais’s first custom sword.
Forged by the Gobnue Familia from Damascus steel imported from the nation of Shaam, it is heavy but offers top‑tier cutting power for a low‑level adventurer.
The name refers to a “sword’s celebratory drink,” marking it as her “first blade.”
Gareth paid most of the cost, and he currently keeps it safe, preserving it as a precious memento of her beginnings.
In the Memoria Freese second‑anniversary event “Argonaut,” set over 3,000 years earlier, a girl named Ariadne appears who looks exactly like Ais.
She is likely Ais’s past life.
Ariadne is the first princess of the kingdom of Lachrios, destined from birth to be sacrificed to a Minotaur to maintain her country’s prosperity.
Because of this, she is resigned and never smiles—until she is saved by Argonaut, Bell’s past life.
In that story, Ariadne drips her blood in the labyrinth to mark her path for Argonaut to follow.
Because of this legend, “Ariadne” becomes a word for “guidepost” in the modern era.
Interestingly, she is often called “Aria” in that tale.
This is the same name as Ais’s mother, reinforcing the reincarnation‑like resonance among Aria, Ariadne, and Ais.
Limited Role in the Main Series
Although Ais is positioned as a main heroine, her on‑screen involvement in the main novel series is relatively small.
This is partly because she belongs to a different Familia from Bell and partly because, by the time the story starts, she is already so strong that she could trivialize most threats if she were constantly present.
The editor has admitted that Ais is difficult to handle because she is “too strong.”
Sword Oratoria was created in large part to give her a stage where she can shine without overshadowing Bell’s development.
The author has stated that he regrets not being able to fully explore Ais’s settings within the mainline volumes.
He has described her as a character who is harder for readers to empathize with if they haven’t read the side story.
Power Compared to Other Loki Familia Executives
During the Xenos conflict, Bete, Tiona, and Tione together cannot defeat Level 7‑class Asterius.
By contrast, Ais, while still only Level 6, manages to push Asterius back in a one‑on‑one fight.
This does not mean she utterly outclasses the others.
The author clarifies that in a straightforward fight, the Hiryute sisters, once pushed to the brink, could potentially turn things around and win, and a fully unleashed Bete with all his conditions met might currently be stronger than Ais.
However, their power comes with penalties or limiting conditions, whereas Ais’s magic is comparatively easy to use.
Her consistent performance, especially against monsters, is what makes her so frightening.
Tiona herself envies Ariel’s usability, lamenting that Ais gets to have such a versatile magic.
In anti‑monster combat, Ais is arguably the most reliable “living weapon” in the Loki Familia.
#Compass: Battle Providence Analysis System
In the mobile real‑time battle game “#Compass,” Ais appears in the collaboration “#Compass Oratoria.”
Despite the source listing “Season 3” of the anime, she is added before Bell, and much of her content is actually adapted from Sword Oratoria rather than the main series.
Her in‑game role is categorized as an attacker, but her stat distribution resembles a gunner more than a typical melee fighter.
Her HP multiplier is extremely low (0.75), making her fragile and requiring careful play.
In exchange, her mobility is among the highest in the attacker class.
She excels at hit‑and‑run tactics and chasing down distant enemies.
Her preferred cards are “Area” and “Ranged” attacks, with “Melee” technically flagged as “fast” but functionally too slow to be reliable.
Skilled players use her mobility and ability kit to chain knockdowns and punish enemies relentlessly.
Her ability, “Sword Princess,” increases her movement speed for nine seconds when she successfully uses her hero action (HA).
This enables powerful chase sequences and combo potential.
Her HA, “Variable Rush Attack / Aerial,” dashes forward, attacking and knocking down foes, then carries Ais slightly beyond them.
It also serves as a mobility tool to quickly reposition.
The HA’s tracking is infamous.
When triggered with a successful check, it locks onto targets so aggressively that even dodges often fail, letting Ais juggle and “lock down” opponents with little counterplay.
Her hero skill (HS), “Lil Rafaga,” propels her forward and hits a wide area, dealing damage while launching enemies backward.
It has guard break, allowing Ais to force damage through defenses and even cross certain map gaps.
Her HS meter fills quickly, making it a versatile tool for comebacks or stalling.
Because of her oppressive lockdown potential, Ais is both loved and hated by players, seen as a high‑frustration but high‑reward pick.
Her costumes include her usual armor and color variants.
In addition, three outfits she once tried on during a clothing shopping trip in Sword Oratoria—rated everything from “absolutely not” to “actually looks good”—are also available.
Tales of the Rays
In January 2021, Ais joined “Tales of the Rays” as a playable collaboration character alongside Bell.
Her Mirrage Arte is, fittingly, “Lil Rafaga.”
KonoSuba: Fantastic Days
In April 2021, Ais appears in “KonoSuba: Fantastic Days” as part of a collaboration event.
She joins Bell and Hestia as guest characters, crossing worlds with the chaotic KonoSuba cast.
The Alchemist Code, Shinobi Master, and CounterSide
Ais has also appeared in collaborations with tactical RPG “The Alchemist Code,” the action title “Shinobi Master,” and the strategy game “CounterSide.”
In CounterSide’s January 2025 collaboration, she is implemented alongside Bell and Ryuu Lion as a “Counter” type, classified as an “Awakened Striker,” reflecting her status as a top‑tier front‑line combatant.
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