This breathing style is later shown to be used by the most powerful Demon Slayer in history, Yoriichi. Tanjiro also carries a piece of Yoriichi wherever he goes in his Hanafuda earrings.

Only shown sporadically in the anime, Yoriichi is one of ... So far in the Demon Slayer anime, Kokushibo has been primarily a background figure; however, he does not need ample screen time to ...