Kaito has a goal in life after losing his eyesight to a demon who later became his friend. That mission is to save the more rational demons and help them remember who they were before they started killing. A side mission of his is to kill the original demon, Muzan, so he can't hurt any more people. (This is just a short side story. It has nothing to do with the main story of Demon Slayer.) (And none of the art or series main characters are mine, except for the picture/drawing of Shoon)
9 parts