At the top of the ranks is the extremely powerful and skilled Kokushibo, a demon with a distinct appearance wielding a katana. Fans may have noticed a distinct resemblance between Kokushibo and ...

In doing so, Michikatsu became one of Muzan’s Twelve Kizuki and changed his name to Kokushibo, making him slowly descend into ...

Tanjiro Kamado is his descendant. Yoriichi's elder twin, Michikatsu, became the demon Kokushibo. The Infinity Castle movie will explore Yoriichi and Kokushibo's relationship. Both brothers ...