Kimetsu No Yaiba character wiki
Zenitsu Agatsuma
A guide to Zenitsu Agatsuma from Kimetsu No Yaiba, covering the character's story, defining traits, abilities, relationships, and role in the series.
Zenitsu Agatsuma is a Demon Slayer and one of Tanjiro Kamado's closest companions. He is fearful and emotionally expressive in ordinary situations, yet possesses extraordinary hearing, speed, and mastery of Thunder Breathing's First Form.
Overview
Zenitsu's story is built around the gap between ability and self-belief. He assumes that fear makes him useless, while his actions repeatedly show courage: he protects people before he expects recognition and continues moving even when he fully understands the danger.
| Profile | Detail |
|---|---|
| Affiliation | Demon Slayer Corps |
| Breathing style | Thunder Breathing |
| Primary technique | Thunderclap and Flash |
| Notable sense | Exceptional hearing |
| Japanese voice | Hiro Shimono |
Appearance
Zenitsu has short yellow-orange hair cut in uneven layers and golden-brown eyes. He wears a yellow haori patterned with white triangles over the Corps uniform and carries a yellow Nichirin sword marked by a lightning design.
Personality
Zenitsu is anxious, pessimistic, and quick to panic. His fear is genuine rather than a disguise, which makes his moments of action more meaningful. He is also loyal and perceptive; his hearing lets him recognize emotional states that other characters miss.
His early behavior around women is immature, particularly his fixation on marriage. As his responsibilities grow, the story increasingly emphasizes his discipline, grief, and determination rather than the comic panic that defines his introduction.
History
Zenitsu trains under former Thunder Hashira Jigoro Kuwajima after being burdened by debt. He struggles to learn the full style but perfects its First Form to an exceptional level. A lightning strike during training changes his naturally dark hair to yellow.
He meets Tanjiro during an early mission and soon travels with him and Inosuke. In his first major battles, Zenitsu enters a sleep-like state when fear overwhelms him; without conscious panic, his trained body executes Thunder Breathing with precision.
His relationship with fellow student Kaigaku becomes central later in the story. Their opposing responses to Jigoro's teachings force Zenitsu to confront the insecurity that had shaped his training and to fight while fully aware.
Abilities and Fighting Style
| Ability | Application |
|---|---|
| Enhanced hearing | Tracks movement and identifies people by their internal sound. |
| Thunderclap and Flash | Accelerates into a single, extremely fast draw-and-strike. |
| Repeated forms | Chains the First Form to attack from multiple angles. |
| Godlike Speed | Pushes his acceleration beyond the standard technique. |
| Seventh Form | An original technique developed from his specialized training. |
Zenitsu turns specialization into strength. Instead of treating one mastered form as a limitation, he refines its speed, footwork, timing, and variations until it can challenge far more experienced demons.
Relationships
Jigoro Kuwajima
Jigoro is Zenitsu's teacher and the first adult to maintain faith in him despite repeated attempts to run away. Zenitsu's desire to honor that trust shapes his later resolve.
Tanjiro and Inosuke
Tanjiro provides patience and moral clarity, while Inosuke constantly challenges Zenitsu's nerves. Their friendship gives him a place to act bravely even when he still feels afraid.
Nezuko Kamado
Zenitsu is attracted to Nezuko from the beginning. More importantly, he protects the box carrying her before knowing its contents because he trusts Tanjiro's conviction.
Trivia
- Zenitsu's birthday is September 3.
- He mastered only the First Form taught within Thunder Breathing, then created his own form.
- His hearing can distinguish people and demons from a distance.
- His hair changed color after he was struck by lightning.
- Hiro Shimono voices him in Japanese.