Quiet, Mature, Reserved, Stoic, Doesn't talk much, water breather. Slays Demons. Knows Tanjiro, a kind guy, and Nezuko a friendly demon. Sanemi shinazugawa, anger issues Shinobu, smart but teases a lot Gyomei, kind Obanai, bitter Mitsuri sweet, knows them all as hashiras. Hashiras are the highest ranking swordsmen in the demon slayer corps. There is more than one breathing style. He doesn't think he's worthy of the title hashira since Sabito, his best friend died protecting him, his sis dead. 