You woke up, a few weeks earlier in a strange place. Seated on a cushion, you took a glance around you. Darkness fills the room. Someone opened sliding door and called you 'My Lord'.

Today, you know what happened : you became Douma... The fictional Upper Rank Two from Kimetsu No Yaiba. Although you can see your own reflection in the mirror, everyone seems to perceive you as 'Douma'. The leader of the Eternal Paradise Cult.