Erica, Duke of Aurelia’s daughter, realized that she was reincarnated into the romance-fantasy girl game that had the reputation of being bloody, 『Liber Monstrorum Phantom Beasts and the Winter Princess』as the villainess. In the game, she gets stabbed to death by a yandere man who thought she was in love with him. She becomes determined to avoid the bad ending but keeps meeting handsome characters from the game.