Issei Ryuudou

Height: 170 cm

Weight: 58 kg

His image color is orange, and he sports a classic, well-groomed style that matches his upright personality.

Issei has an attractive face and gives off a scholarly vibe, enhanced by his serious mannerisms and composed expressions.

Issei is diligent, honest, and a stickler for doing the right thing, often coming across as very serious and reliable.

His sincerity and sense of duty make him popular, but he can seem strict and overprotective, especially regarding Shirou Emiya.

He’s straightforward, dislikes slyness and drama, and gets easily flustered by manipulative or cunning women.

Despite his conservative and rigid attitude, he’s sharp and able to see through the facades of those around him.

Issei’s strong sense of trust towards Shirou often leads to humorous overprotectiveness, and many friends tease him for it.

Issei grew up at Ryuudou Temple as the second son of the head priest, following a traditional upbringing marked by strict discipline.

He commutes daily, spending two hours walking from the temple to school, showing impressive physical endurance.

Issei is trained in martial arts, holding a black belt in karate, and has an affinity for deep thinking hobbies like crossword puzzles and Go.

His family rarely allows him to eat meat, so he often looks forward to sharing Shirou’s lunches.

Issei’s skills include expert-level meditation and karate, reflecting years of routine training at the temple.

His charismatic leadership as student council president is said to be comparable to the rank B or C of a Servant, making him influential among students.

He is physically fit, with remarkable stamina that allows for long distance walks and duties at the temple.

Shirou Emiya

Issei’s closest friend, with whom he shares meals and mutual respect.

Issei admires Shirou deeply and values his reliability in school activities and his lunch-making abilities.

Rin Tohsaka

Issei sees Rin as a rival and “archenemy,” stemming from a long history of student council disputes and personality clashes.

Their bickering is infamous—he often finds her too cunning and represents everything he struggles to tolerate in others.

Ayako Mitsuzuri

Despite frequent clashes over club funding, Issei maintains a cordial relationship with Ayako, the captain of the archery club.

Shinji Matou

Issei and Shinji do not see eye-to-eye, and their interactions are distant and strained.

Kane Himuro

Issei has no particular dislike for Kane Himuro; with clear-cut personalities, he is generally at ease.

Sōichirō Kuzuki

Respects this guest of Ryuudou Temple and refers to him as “Sōichirō-nii,” seeing him as embodiment of the ideal adult.

Caster

Issei believes Caster is Sōichirō Kuzuki’s wife, and generally has a positive impression unless manipulated otherwise.

Kaede Makidera

Their conflict centers on student council business rather than personal feelings, with occasional disputes over club budgets.

Artoria Pendragon

Issei was impressed by Artoria Pendragon when she visited the Emiya household, finding her etiquette and demeanor admirable.

Chloe von Einzbern

Issei is instantly wary of Chloe, sensing “the same mysterious aura” as with Rin, and staying on guard.

Luviagelita Edelfelt

Issei clashes with Luviagelita, whose personality resembles Rin’s, which leads to additional comedic confrontations.

He terms Rin Tohsaka, Ayako Mitsuzuri, and Shinji Matou as “Homurahara’s Three Great Buddhist Enemies,” showcasing his unique worldview.

Issei’s overprotectiveness towards Shirou spawns ongoing jokes about their relationship, and he’s the subject of many friendly BL-themed teases.

He is fond of crosswords and Go, and detests trendy things and manipulative women, preferring straightforward companions.

Issei rarely eats meat, always delighted when Shirou shares lunches.

Despite seeming uninterested in romance, Issei does appreciate women who are straightforward—the female members of his social circle aren’t an issue unless they’re sly.

In comedic spin-offs, Issei’s “guardian” complex reaches hilarious extremes, such as his plan to “hide Shirou from women at Ryuudou Temple.”

He’s notably praised Bazett Fraga McRemitz’s carpentry skills, calling her “wonderful.”

“So-san!”

“If Shirou Emiya wasn’t here, I wouldn’t know what to do.”

“I can’t leave Emiya to any woman! I’ll take care of him at Ryuudou Temple, with the men!”

Fate/stay night Main Story

Issei supports Shirou throughout their school life, serving as his confidant and often acting as a grounding force against the chaotic events surrounding the Holy Grail War.

He keeps a vigilant watch on Shirou’s relationships, especially wary of those he considers manipulative, like Rin and Luviagelita.

On one route, if manipulated, Issei can even become an unwilling pawn to Caster’s magic, endangering Shirou.

Despite all, Issei’s loyalty and integrity consistently shine.

Fate/EXTRA

Issei’s digital counterpart serves as the student council leader of Tsukihime Academy, guiding NPCs and befriending the protagonist.

Though slightly reimagined, his moral compass and reliability remain unchanged in this alternate world.

Prisma☆Illya

Despite the alternate setting, Issei’s cautious, protective nature and comedic interactions—especially in group trips and the infamous “BL” misunderstanding—persist, often sparking hilariously tense moments.

In these versions, his protective antics become more exaggerated, sometimes leading to over-the-top scenes with Shirou and the rest.

Himuro’s World

As a key student council figure, Issei is swept up in school politics and disputes, constantly working to maintain order and dealing with the aftermath of predecessor actions.

His leadership and knack for organizing shine as he navigates various conflicts among other students.

Parallel Worlds

In some parallel versions, Issei’s individual presence may be absent, but elements such as Ryuudou Temple still make their appearance.

Issei’s voice actor is Mitsuaki Madono.

Issei Ryuudou is often referenced in other Fate stories and parody works, especially for his dynamic with Shirou and comedic misunderstandings over their relationship.

He remains one of Homurahara Academy’s most iconic student leaders, with a reputation for unwavering sincerity and an uncanny ability to find himself at the heart of school drama.