Tsukuyomi

Tsukuyomi first appears in the “Private” arc, looking like a girl around four to five years old.

Her real name is unknown, and she initially has no official name in the story.

She is always dressed in a black dress and is accompanied by flocks of crows, emphasizing her eerie, otherworldly presence.

Her manner of speaking is dry, sarcastic, and often ominously suggestive.

Tsukuyomi knows that Aqua Hoshino and Ruby Hoshino are reincarnations.

She also knows in detail about their previous lives, the circumstances of their deaths, and what happened to Ai Hoshino’s soul afterward.

She repeatedly appears in front of Aqua and Ruby to push them toward their “roles” or “duties,” implying that they were chosen for a purpose.

Despite this, she insists that she is not a “being who governs entertainment,” even though she performs convincingly as a child actor.

Within the story she is described as a being who can transfer the souls of the dead into newborn infants.

She calls herself something akin to “a being that guides people with moonlight and governs fate.”

Over time, she adopts the stage name Tsukuyomi when she is dragged (via provocation) into acting in the film “15-Year Lie,” playing the child versions of Aqua and Ruby.

Her acting skill is acknowledged even by director Taishi Gotanda.

In the anime, her voice actress is Hina Kino.

In the live-action adaptation, her portrayal is credited as “No Count, No Count.”

Early Appearances and Aura

Tsukuyomi initially appears only to Aqua and Ruby, and always one-on-one.

Because no one else seems to interact with her at first, many readers assumed she was a supernatural entity only the twins could perceive.

She often talks as if she stands outside human affairs, claiming that it is “against reason” for her to interfere too much.

However, she is also surprisingly childish and prideful, easily goaded by simple provocations.

Aqua calls her a “god of misfortune” because she shows up only to drop unsettling truths or ominous hints.

She speaks in a way that constantly pokes at people’s weak points and fears.

Appearance in Volume 8, Chapter 75

When Aqua and Akane Kurokawa visit Gorou Amemiya’s birthplace, Tsukuyomi appears.

She is surrounded by countless crows, delivering cryptic commentary.

She observes that “God must be kind,” then says that two children who never truly had a mother and a child born without a soul were guided together.

She implies there may be an even deeper meaning behind this.

Her reference to a “child without a soul” fueled fan speculation that Ai Hoshino’s original babies might have died, and that the current twins are reincarnated souls placed into soulless bodies.

Appearance in Volume 8, Chapter 79

Ruby, in her previous hometown, discovers Gorou’s skeleton and takes his keychain as a keepsake.

Tsukuyomi appears and offers information Ruby “wants to know.”

She explains that a popular idol once secretly gave birth at that hospital, and that the doctor who died there was her attending physician.

The doctor disappeared the same day the idol gave birth.

She also notes that suspicious men had been seen around the hospital.

These were described as one male around university age and one male around middle-school age.

Tsukuyomi then explicitly identifies the university-aged man.

For the younger boy, she refuses to say more and tells Ruby, “Isn’t finding that one your role?”

By linking the murder of the doctor (Gorou) and Ruby’s mother in her previous life, she effectively tells Ruby that the same people killed both.

From that moment, Ruby shifts into a far more ruthless, goal-driven personality.

Appearance in Volume 12, Chapter 118

As casting for the film “15-Year Lie” comes together, Aqua rests during a break.

Tsukuyomi appears and casually reads his thoughts and emotional focus: his sister, his ex-girlfriend, the girl who loves him, and his mother.

She confronts Aqua’s hope that Ai might have been reincarnated and living happily somewhere.

Tsukuyomi flatly denies this, stating that Ai’s story has ended completely and irreversibly.

She insists Ai Hoshino’s soul is shattered, cannot be reformed, and will never reincarnate.

According to her, Ai will never think, feel, or smile again.

This makes Tsukuyomi the canonical mouthpiece that confirms Ai’s soul has truly died with no second chance.

Appearance in Volume 13, Chapter 123

After Aqua and Ruby reveal their former identities to each other and reconcile, Tsukuyomi reappears.

She criticizes Aqua’s choice, calling it a poor move and a “clear failure” born of his softness.

From her perspective, Aqua would have had an easier time emotionally if Ruby had continued to hate him.

By allowing reconciliation, he has complicated his own path and burdened himself emotionally.

Appearance in Volume 13, Chapter 127

Tsukuyomi appears again when Aqua looks resolved.

She notes that he has decided to hurt others and to be hurt himself, implying that he has accepted a painful path.

She frames her actions as guiding people toward the “correct” destiny.

She declares she is “kind,” but her kindness is cold and utilitarian.

Here Aqua asks about her own status.

She confirms she has parents and a human body, that she was born like any other person, and can be recognized by anyone.

She also hints there are others like her, including “beings who can transfer the memories of the dead into the bodies of infants.”

She presents herself as at least comparable to such a being.

When Aqua abruptly asks her to play a child actor in the movie, she is visibly shaken for the first time.

Her usually aloof demeanor cracks as she protests, asking if he is stupid and warning him to stop making strange jokes for his own good.

She demands, “Who do you think I am?” and reasserts that she is a being of the same class as those who perform soul-transfer techniques.

Aqua brushes this aside and points out that the film’s success is in her interest too, which is why she keeps meddling.

He then casually tells her to just admit “I can’t do it, I’m not talented enough.”

Her pride flares, she snaps “I can do it, don’t underestimate me,” and takes the bait.

Aqua then presents her to Taishi Gotanda and Ruby as a promising child actor he “caught.”

She insists she came of her own will, not because she was “caught.”

Appearance in Volume 13, Chapter 128

Tsukuyomi accepts the role of playing the child versions of Aqua and Ruby in “15-Year Lie.”

She chooses Tsukuyomi as her stage name at this point.

Her performance convinces Gotanda, and even though she refuses the label, she displays talent comparable to actors “who govern entertainment.”

Her involvement makes the meta situation amusing: a moon-like fate-being playing a child version of someone whose reincarnation she herself arranged.

Later Manga Appearances

In chapter 144, Ruby taunts her, and Tsukuyomi reacts with half-genuine irritation.

Her composure breaks again, showing how childish she still is emotionally.

In chapter 145, she finally has her big shooting day.

She acts out a stubborn, tantrum-throwing Ruby and an unnaturally perceptive Aqua, matching their childhood personalities with unsettling accuracy.

The same chapter clarifies her backstory, tying together earlier “mystery hints” about her identity.

This is the payoff chapter where her origin as a crow is revealed.

In chapter 148, she is seen in a swimsuit, sitting on a tree branch alongside crows.

The image emphasizes her continued closeness to crows and her odd, almost ritualistic presence in nature.

In chapter 158, she muses on the nature of love.

She describes love as something that includes regret, anger, hatred, envy, jealousy, obsession, desire, disappointment, and even murder, asking why humans still call such things “love.”

In chapter 162, she is shown standing above the water’s surface, bathed in moonlight.

The imagery reinforces her connection to the moon and to a liminal, otherworldly realm.

In chapter 163, she has a sit-down conversation with Aqua.

Their dialogue further emphasizes her function as a commentator on fate and as someone who both nudges and judges Aqua’s decisions.

Appearance in the Novel “Two-Person Etude”

In the novel set several years after the main series ending, Tsukuyomi appears again.

Akane Kurokawa describes her as having grown into a breathtakingly beautiful young woman.

She is keeping an eye on Akane, who is digging into occult matters and might actually attempt something dangerous.

Tsukuyomi seems to stay close as a guardian or monitor.

The novel confirms that Tsukuyomi is connected to the occult world.

It also reveals she was born into a prestigious shrine family, but was never given a personal name.

She knows techniques that can resurrect or re-embed the dead—such as methods for fixing the memories of the dead into newborn bodies.

However, the novel does not explicitly state that she personally handled Aqua and Ruby’s reincarnations.

Tsukuyomi belongs to a rare category of beings that deal with souls and fate.

She claims to possess or be of the same type as those who can move dead souls or memories into newborn bodies.

In the main story, she is explicitly identified as the one who took the souls of Gorou Amemiya and Sarina Tendouji and placed them into Ai Hoshino’s unborn twins.

This explains why the twins were originally “soulless” and why Tsukuyomi knew of them even before their birth.

She describes herself as “a being that guides people with moonlight and governs fate.”

This positions her as something halfway between a god, a shaman, and a high-level occult practitioner.

She constantly appears accompanied by crows, and can seemingly command them.

The crows gather around her, mirror her movements, and help her watch over people and events.

She has extensive knowledge of deaths, reincarnations, and the flow of souls in the world.

She can see or sense the fates of people such as Ai Hoshino, Gorou Amemiya, Ruby Hoshino, and Aqua Hoshino, including their pre- and post-mortem states.

Despite all this, her physical body is ordinary, and she insists she is fully human in the biological sense.

She has parents, a physical presence visible to anyone, and is not an illusion.

As an actor, she has a surprisingly high level of performance skill for a child.

Taishi Gotanda considers her talent convincing and usable, and she herself reacts strongly to any suggestion that she might lack ability.

Tsukuyomi’s emotional expression is usually flat and detached.

She talks like someone who has seen everything and is bored by most of it.

She prefers to remain an outside observer, often saying it goes against “reason” for her to interfere too much.

Yet at the same time, she keeps nudging Aqua and Ruby toward certain actions and decisions.

Her pride is unusually strong.

She is easily provoked when someone challenges her competence or status, as seen when Aqua goads her into acting.

Her speech is full of dark honesty.

She does not sugarcoat the finality of death, the cruelty of love, or the ugliness of human motives.

However, she is not purely malicious.

Her interference generally pushes Aqua and Ruby toward confronting the truth and moving their stories forward, even if it hurts.

After her backstory is revealed, many readers interpret her as fundamentally on Aqua and Ruby’s side.

She hides important details, misdirects them occasionally, and lets them suffer—but largely because she is bound by rules or because full disclosure would break the story’s “proper” course.

She has a peculiar way of viewing Gorou Amemiya and Sarina Tendouji as “cute children,” even though Gorou was a grown man and Sarina a young girl.

This implies she sees them from a perspective where human age differences are negligible.

Her commentary on love in chapter 158 reveals a cynical yet fascinated view.

She sees love as deeply intertwined with negative emotions and destruction, yet recognizes it as central to human existence.

Crow Origin

In chapter 145 during a dance practice scene, the story finally reveals Tsukuyomi’s former life.

She was once a crow that Gorou Amemiya and Sarina Tendouji rescued after it had become tangled in a net in front of the hospital.

After being freed, she stayed near them and watched over their lives.

She even left red maple leaves at Sarina’s bedside as a kind of small gift.

Eventually, as a crow, she reached the end of her lifespan and died.

She then reincarnated into her current human form, retaining a unique connection to both the twins and the spiritual world.

This explains her affection for Gorou and Sarina and why she calls them “cheeky but cute kids.”

It also explains her deep attachment to Aqua and Ruby, whose lives are built on the reincarnations of her favorite humans.

Human and Occult Background

Although she was once a crow, her current life began when she was born as a human child.

She has a physical body, and her existence is recognized in standard human systems like family registers.

However, her parents are far from ordinary.

In the novel “Two-Person Etude,” it is revealed that she was born to a pair of high-ranking shrine-family parents.

She is a nameless child within that prestigious shrine lineage.

That lack of a personal name in her family context matches the fact that she only picks up “Tsukuyomi” as a stage name when forced into the entertainment world.

She is connected to the occult world and seems to operate as part of an organization or tradition that deals with souls, reincarnation, and resurrection techniques.

Her knowledge implies a network or system of such practitioners, rather than her being the only one.

The main series suggests there are multiple methods or factions capable of transferring memories or souls into newborns.

Tsukuyomi’s dialogue in chapter 75 and 127 hints that some of these methods are not her own, and that the world of Oshi no Ko contains more than one “technology of reincarnation.”

Because of this, some references outside the core story mistakenly credit her as directly responsible for all reincarnations.

In reality, her exact direct involvement is confirmed for Gorou and Sarina’s souls entering Ai’s twins, but not for all other soul transfers that may exist in that universe.

Possible Divine Aspect

Tsukuyomi repeatedly uses language suggesting she is bound by rules beyond human morality.

She talks about “guiding to the correct destiny” and about interfering only within certain limits.

Given her crow origin, human shrine-family birth, and moon/fate symbolism, many readers interpret her as something like a “half-divine” being.

She behaves like a minor god who is constrained by a cosmic rulebook yet emotionally attached to certain individuals.

Her inconsistent helpfulness—sometimes giving crucial clues, sometimes withholding critical information—reinforces this image.

She helps enough to keep the story “on its rails,” but not enough to grant the characters an easy or painless path.

Tsukuyomi has a very particular bond with Aqua Hoshino and Ruby Hoshino.

She is the one who transplanted Gorou and Sarina’s souls into Ai’s unborn twins, effectively “creating” Aqua and Ruby as reincarnated children.

She has watched them across lives: first as a crow observing Gorou and Sarina, then as a human guiding Aqua and Ruby.

From her perspective, they are “cheeky, cute kids” she has known through multiple cycles.

To Aqua, she is an irritant and a harbinger of bad news.

He calls her a god of misfortune because she appears with painful truths and pushes him toward violent or self-destructive conclusions.

To Ruby, she is both a guide and a corrupter.

By revealing the connection between the murder of Ruby’s former-life doctor and her mother, Tsukuyomi catalyzes Ruby’s transformation into someone prepared to sacrifice anything for her goals.

Despite her cold tone, she clearly cares about both of them.

Her interventions are too focused, and her continued presence too persistent, to be detached curiosity.

When Aqua forces her into acting, their dynamic becomes more comedic and human.

She gets flustered by his provocations, bickers with Ruby, and acts much more like a normal girl with a huge ego and too much knowledge.

Tsukuyomi indirectly interacts with Akane Kurokawa via surveillance in “Two-Person Etude.”

She is wary of Akane’s interest in the occult, fearing that Akane might actually attempt something dangerous with that knowledge.

She indirectly influences Taishi Gotanda by agreeing to act, improving his film and thus the narrative path around Aqua and Ruby.

Gotanda recognizes her talent but never grasp fully what she really is.

Her commentary about Hikaru Kamiki is particularly important.

In chapter 161, she refers to Kamiki’s soul as once “noble,” suggesting that he was not born a sadistic killer.

This line becomes crucial because it pushes back against fan theories that Kamiki was always irredeemably evil or that he inherently enjoyed orchestrating tragedies.

It supports the reading that he was warped by the entertainment industry and his circumstances, rather than being a pure-born monster.

Given that Kamiki destroyed the lives of the two people Tsukuyomi loved most in their prior lives, it is striking that she is the one confirming he once had a noble soul.

This irony highlights her role as a neutral arbiter of fate, not merely a vengeful spirit.

Tsukuyomi is one of the only beings in Oshi no Ko who stands outside the “purely human story.”

She embodies a kind of “god’s-eye view,” commenting on love, death, and revenge with detached clarity.

Her existence confirms that the world of Oshi no Ko includes real, systematized reincarnation and soul manipulation.

She is the bridge between the realistic entertainment drama and the supernatural premise.

Her mixture of affection and distance toward the twins illustrates the contrast between cosmic-scale beings and individual human suffering.

She loves them, yet is willing to let them suffer if that aligns with “correct fate.”

Readers have also speculated that she might secretly be Ai Hoshino reincarnated, based on her calling Gorou and Sarina “cute children” and her extreme familiarity with Ai.

However, this contradicts her own explicit statement that Ai’s soul is shattered and cannot reincarnate.

The series concludes, including extra material, without fully explaining Tsukuyomi’s nature or the full scope of her powers.

Many aspects of her background, rules, and limitations are left deliberately mysterious, fueling ongoing fan theories.

Behind the scenes, the creators reportedly referred to her as “mysterious child” for a long time because she had no finalized name.

Even chapter 118’s magazine release labeled her in the side text simply as a “mysterious child,” and only later did “Tsukuyomi” become her official stage name in chapter 128.

Because her name overlaps with other Tsukuyomi-inspired characters and due to spoiler concerns, she has not been added as a playable or cameo character in the current social game collaborations.

Her role remains primarily within the core narrative and the novel extension, where her presence continues to color the entire story’s interpretation.