Kaigaku

Trained under the former Thunder Pillar, Jigoro, this former member of the Demon Slayer Corps shares a deep connection with his fellow disciple, Zenitsu. Having mastered the art of Thunder Breathing, he was once part of a shared lineage of martial prowess alongside his peer. His history is defined by his rigorous instruction under Jigoro's guidance, forming a complex bond with the only other student to inherit the same powerful breathing technique.