Katsuki Seijun

art by @wasabilabel on Twitter

**Katsuki Seijun** (誠 (せい)純 (じゅん)克 (かつ)樹 (き), *Seijun Katsuki*?) is a grade 2 jujutsu sorcerer and first-year student of Tokyo Jujutsu High studying under Satoru Gojo alongside Yuji Itadori, Megumi Fushiguro, and Nobara Kugisaki.

## Appearance

Katsuki is a young girl with fair-medium skin and lilac eyes. Her hair is styled with braids wrapping at the crown of her head. After the Shibuya Incident, it eventually changes back to its natural brown color.

Her Jujutsu uniform consists of a dark blue coat with a white collar and sleeve cuffs, accompanied by matching dark blue shorts. She wears a pair of mid-calf length white socks, light-blue straps with blossoms wrapped around the cuffs, along with low-heeled black dress shoes.

## Personality

At first glance, Katsuki is extremely introverted. She had difficulty developing communication skills at a young age, which led to her social isolation later in life. Her trust issues, in both society and herself, made her wary of attaching herself to others. While she tends to be impassive, Katsuki is a gentle spirit. Her body language appears lax and comfortable around the people she trusts, and can get easily carried away in the moment. Katsuki is often poetic and quotes famous poets from different works, though she is shy and embarrassed when others read her own. She has a lazy side, with a tendency to be an airhead.

Underneath her soft exterior hides a dedicated and professional Jujutsu sorcerer. Before, Katsuki opposed the idea of becoming one, deeming it unfulfilling, but after understanding the weight and power behind her technique, she decided to train under her grandmother’s guidance to enter Tokyo Jujutsu High. With years of insight into human behavior, she has a good judge of character. She was able to deduce Mai Zenin’s complicated feelings towards her sister, Maki Zenin.

She maintains an unbothered expression when faced with an opponent, but she is noted to have expressive eyes. She dislikes individuals who misinterpret or even ignore the truth for their own beliefs; she finds impartial and inconsiderate people insufferable and won’t stand if anyone is willing to waste a life away. Despite her morally good construct, she can be pushed into the gray area when an individual threatens her friends and family’s lives.

## Abilities and Powers

 "*I still have so much to learn...*"

— **Katsuki Seijun**
**Overall Skill Level**: Katsuki is known to be an anomaly for breaking the inheritance cycle of the valued Blessed Talisman Technique of her bloodline. While it was centurial, being the user before her was her grandmother, Katsuki was undoubtedly born with the technique. The higher-ups viewed this as a negative event, due to the theory of the technique's potency being affected, but her grandmother found significance in it, and would later train her in mastering it.

Under the guidance of her grandmother, a previous teacher of Tokyo Jujutsu High and special grade sorcerer, Katsuki became foundationally skilled and knowledgeable in combat and jujutsu. When officially registered as a jujutsu sorcerer, she was ranked grade 2. Katsuki possesses great potential to surpass many sorcerers above her rank. Satoru Gojo has even admitted that she has the capabilities of being his equal if receives specialized training.

Katsuki is notable for her cursed energy mastery. As a requirement of utilizing her technique, Katsuki has become accustomed to the constant transformation of negative energy into positive energy after years of training. Since she can directly transform her energy, it provides her temporary immunity to any areas with immoderate cursed energy.

Her attributes make her a versatile companion to any battle. During the 2018 Goodwill Event, Katsuki used her technique to detect their opponents’ location and high-value curses within their area, while casting concealing seals on her peers to maximize their stealth, which doubles as a sensory signal if one member is in danger. After the event, many sorcerers acknowledged her pioneering skills and title as a “Blessed Talisman Technique user.”

**Great Tactical Intellect:** While she does not have outstanding strategy expertise like Megumi Fushiguro, Katsuki compensates for her innate ability of adapting to situations and value of teamwork. Amongst the first years, Katsuki has the longest field experience, and can skillfully navigate tricky situations supplied with her substantial knowledge of her opponents. She possesses enough witts to defeat a first grade curse as a novice sorcerer, which proves that her experiential approach in battle serves her best. Though Katsuki says her survival was because of "dumb luck," Megumi is quick to disagree, stating that her ways of thinking was unique to her.

### Physical Prowess

**Proficient Weapons Specialist:** Katsuki was recommended to train on using cursed tools, specifically polearms.

**Immense Agility and Speed:** Katsuki is proven to be the swiftest student of Jujutsu High, greatly surpassing Itadori and Maki. As seen maneuvering through the Goodwill forest and out-pacing the special grade curse, Hanami, to the point of irritation.

## Battles & Events

**Pre-Story Events**

* Katsuki Seijun vs. First Grade Cursed Spirit
* Katsuki Seijun, Megumi Fushiguro, & [REDACTED] vs. Cursed Spirits

**Fearsome Womb Arc**

* Evacuation of the Eishu Detention Center
* Katsuki Seijun & Megumi Fushiguro vs. Sukuna

**Kyoto Goodwill Event Arc**

* Kyoto Sister-School Goodwill Event
	+ Spirit Bash Race
		- Katsuki Seijun vs. Mei Zenin & Momo Nishimiya
		- Katsuki Seijun, Maki Zenin, & Megumi Fushiguro vs. Hanami
	+ Baseball Game

**Death Painting Arc**

* Katsuki Seijun & Megumi Fushiguro vs. Yasohachi Bridge Curse
* Katsuki Seijun vs. Cursed Spirits

**Shibuya Incident Arc**

* The Shibuya Incident
	+ Jujutsu Sorcerers vs. Dagon
	+ Katsuki Seijun vs. Cursed Spirits

**Perfect Preparation Arc**

* Katsuki Seijun & Nobara Kugisaki vs. *Musou Sakurahachi* Cursed Spirits
* Katsuki Seijun vs. Transient Bloom

## Trivia

* Katsuki’s surname has the kanji for “faithful, truth” (誠, *sei*) and “purity” (純, *jun*). Her given name is written with the kanji for “achieve, win” (克, *katsu*) and “tree” (樹, *ki*)
* According to Jujutsu Kaisen Official Fanbook:
	+ Enrollment method: Family lineage
	+ Her hobbies are relaxing in her room and playing games.
	+ Favorite foods are Korean BBQ
	+ Least favorite food: cold rice
	+ Cause of stress: Overstimulation
	+ Megumi and Katsuki are childhood friends.
	+ Ever since she resurrected Megumi’s white divine dog, both dogs have grown an attachment to her.
	+ She regards Nobara Kugisaki and Maki Zenin as her sisters.
	+ She plays games and watches YouTube videos with Toge Inumaki in their spare time.
* Katsuki shares the same birthday as Utahime Iori, Kyoto Jujutsu High School’s teacher.
* Her theme songs are “MAKUAKE” by *eill* and “She Share Story” by *Yui Yamaguchi*.
* She has experience of being a shrine maiden.