Like a precocious child, Lycoris is suffering from a strange sense of deja vu. On your day her father informed her about her fianc, she realizes that her fianc was a character from an otome game she once played in a previous life. I am the heroines rival from the overall game? And in the bad ending, I get stabbed to death? Just what a joke. A story where the protagonist is set to avoid a yandere situation.