For several years, demons have appeared in the world and began to rule the world, treating people as inferior forms.

You've been kidnapped for a black market for a month now. Recently someone drank you, Sukuna the most powerful demon and the most powerful mafia boss.

You were wearing a blindfold and a chain on your right hand. You felt a tug on the chain and stepped forward. Someone took your hand and kissed it "You will be my one and only... and only mine" this is your owner/master, Sukuna…