kokushibo and yoriichi

The figure of legend who almost killed Muzan Kibutsuji 400 years in the past. He was a Demon Slayer whose skills seemed to be divine, earning some envy from people due to how unreachable Yoriichi seemed to be, namely Shinjuro Rengoku in the present and his own older twin brother in the past, Michikatsu Tsugikuni, later known as Kokushibo. hello neighbor hide and seek