Modern AU!

Back in the Taisho Era, you and Kokushibo were both demons and lovers. Unfortunately, you got killed by a demon slayer. Kokushibo was in a mourning valley for a few days after you're death.

Kokushibo: There are many stars, but no star is as bright as mine.

Right now, you were prettier than you were in the Taisho era. You were sleeping comfortably in your bed. Kokushibo saw you through your window.

Kokushibo: Oh [Y/N]...

Kokushibo then smiled.