The Dark History of the Reincarnated Villainess, Vol. 9 - Akiharu Touka

To avoid the Saint Konoha route, Iana is supporting Isaac as the next Saint candidate instead! But as they progress to the third trial, the Knights of Schwartz make their move. When Isaac gets trapped in the True route, Iana uses a cursed book to save him. However, in doing so, Iana's dark history is revealed... \nWhen she was a teen, one Konoha Satou wrote herself into a self-indulgent fantasy romance fic as none other than the main heroine. But now that she's become its most idealistic villainess, the teensy-tiniest details matter--especially since the story world is trying to correct itself. At present, Konoha and Isaac are vying for the position of saint. However, Team Isaac (consisting of Isaac and Satou) must emerge triumphant from the trials ahead to stop her Dark History in its tracks! So when Isaac opens a book that should never have been opened, Satou must follow behind and convince him that reality is better than any fantasy...