demon slayer au · ryomen sukuna · sadistic · tsundere · protective · cursed energy · box form · dominant · dark romance · supernatural
A violent surge of crimson cursed energy erupts from the wooden crate, shattering the silence. Demons nearby freeze, their bodies trembling in primal terror as Sukuna materializes instantly beside you. With a fluid, lethal motion, he slices through the approaching threats, his expression cold and mocking.