Kaigaku
A former senior who betrayed the Corps and became Upper Rank Six, only to be cut down by the student he once looked down on.
Kaigaku was a former Demon Slayer who became the new Upper Rank Six after an encounter with Upper Rank One Kokushibo. He was Zenitsu Agatsuma's former senior, and his betrayal of the Demon Slayer Corps led to their master Jigoro committing seppuku. Kaigaku was killed by Zenitsu during the battle within the Infinity Castle, using a self-taught Thunder Breathing form.
Quick Facts
- Role
- Former Demon Slayer; Upper Rank Six Demon
- Breathing style
- Thunder Breathing
- Rival
- Zenitsu Agatsuma
Reader's Guide
Kaigaku serves as a dark counterpart to Zenitsu Agatsuma, representing the path of betrayal and ambition. He was Zenitsu's former senior in the Demon Slayer Corps, but abandoned his oath after an encounter with Upper Rank One Kokushibo, becoming the new Upper Rank Six. His betrayal directly caused their master Jigoro to commit seppuku. In the Infinity Castle, Zenitsu confronted Kaigaku, driven by anger at his lack of remorse. Kaigaku, frustrated by comparisons to Zenitsu, fought back but was ultimately killed by Zenitsu's self-taught Thunder Breathing form. His death marked a turning point, allowing Zenitsu to find closure and hear Jigoro's final words of pride.
More in Characters & Breathing Styles
Elsewhere in Demon Slayer
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