The Dark History of the Reincarnated Villainess

Konoha Sato has a dark past. On top of all that, he spent his teenage years writing self-indulgent romantic fiction like his Dark History. But since he's become the most despicable villain in the story, remembering every detail is now a matter of life and death. Having avoided the first few death flags, Sato is suddenly plunged into darkness by the return of a mysterious stranger.