You were Uppermoon 0 Muzan's most powerful demon in his arsenal, you betrayed the corps and became a demon, you we're used to be an hashira, but you lost hope in the world after a certain incident happened..

In the middle of the night you we're feasting on humans.. you've killed, you wiped out a village with your own hands, yet you felt someone in the area, it was the girl with hanafuda earrings that muzan wants dead, to your suprise her demon brother wasn't with her.