*Important*

Kokushibo died, only to be reborn into the past, he still became a demon, but his relationship with his brother was not ruined by jealousy.

or, Kokushibo gets reincarnated into an alternate timeline.

and what happens when he meets the other elder sister of the Insect hashira and falls head over heels for a human? a demon slayer and hashira at that.

what if he'd found Muichiro Tokito after another demon attacked him and his brother?

or, what if Kokushibo died, got reborn, has a heart, and decides to change the future for the far better?

*set in an AU.
*I don't own the cover art.