Zenitsu Agatsuma Personality: A Cowardly Hero

Updated: Monday, December 22, 2025

MBTI

ISFP

Enneagram

6w7

Alignment

Neutral Good

Zenitsu Agatsuma is one of the main characters of the anime and manga series Demon Slayer: Kimetsu no Yaiba. He is a Demon Slayer who uses Thunder Breathing, a sword technique that allows him to move at lightning speed. He is also a travelling companion of Tanjiro Kamado and Nezuko Kamado, the protagonists of the story.

Zenitsu Agatsuma's Personality

Zenitsu is a cowardly, timid, and anxious individual who often complains about his dangerous job as a Demon Slayer. He lacks self-confidence despite having talent and power, often seeing himself as worthless. Zenitsu is perpetually fearful and tries to escape danger, longing for a normal and peaceful life.

Zenitsu was orphaned at a young age and was taken in by a man named Jigoro Kuwajima, who taught him Thunder Breathing. However, Zenitsu was unable to master the technique and only learned the first form out of six. He also suffered from constant abuse and ridicule from his fellow students, who mocked him for his cowardice and incompetence. Zenitsu developed a low self-esteem and a pessimistic outlook on life, believing that he would die soon.

Zenitsu’s life changed when he met Tanjiro and Nezuko, who accepted him as a friend and treated him with kindness and respect. Zenitsu was initially reluctant to join them on their journey, but he gradually grew attached to them and became loyal and protective of them. Zenitsu also developed feelings for Nezuko, who he saw as a beautiful and pure girl, and vowed to protect her at all costs.

Zenitsu’s personality also changes when he falls asleep or faints, which happens frequently due to his fear or stress. In this state, he becomes a fearless, confident, and skilled fighter, who can unleash the full potential of his Thunder Breathing. He can defeat powerful demons with ease and speed, often surprising his allies and enemies alike. However, he has no memory of his actions when he wakes up, and remains unaware of his true strength.

Zenitsu’s character arc revolves around overcoming his fear and insecurity, and realizing his worth and potential. He faces many challenges and hardships that test his courage and resolve, such as fighting against the Upper Rank demons, losing his hearing, and witnessing the death of his master. Through these experiences, he learns to trust himself and his friends, and to fight for what he believes in. He also matures and grows as a person, becoming more responsible and reliable.

Relationships

Tanjiro Kamado: Zenitsu’s best friend and fellow Demon Slayer. Zenitsu admires Tanjiro for his strength and kindness, and often follows him around. He also respects Tanjiro for his bond with Nezuko, and supports their quest to turn her back into a human. Tanjiro is one of the few people who can calm Zenitsu down and encourage him to face his fears. Zenitsu considers Tanjiro as his brother and would do anything for him.
Nezuko Kamado: Zenitsu’s love interest and Tanjiro’s sister. Zenitsu fell in love with Nezuko at first sight, and is obsessed with her. He constantly tries to impress her and get her attention, often annoying her and others. He is also very jealous and possessive of her, and gets angry when other men approach her. However, he also genuinely cares for her and respects her as a person, not just as an object of his affection. He is determined to protect her from harm and to help her regain her humanity.
Inosuke Hashibira: Zenitsu’s rival and friend. Zenitsu and Inosuke have a rocky relationship, as they often argue and fight over trivial matters. Zenitsu is annoyed by Inosuke’s loud and aggressive personality, while Inosuke is irritated by Zenitsu’s cowardly and clingy behavior. They also compete for Nezuko’s attention, and try to outdo each other in battle. However, they also share a bond of friendship and trust, and work well together as a team. They also have a mutual respect for each other’s abilities and growth.

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