It Seems Like I Got Reincarnated Into The World of a Yandere Otome GameYandere Otome Game, Yandere-kei Otomege no Sekai ni Tensei shite shimatta you desu, Yandere-kei Otomege no Sekai ni Tensei Shite Shimatta Youdesu, ヤンデレ系乙女ゲーの世界に転生してしまったようです

As a precocious child, Lycoris suffers from a strange sense of déjà vu. On the day her father told her about her fiancé, she realizes that her fiancé was actually a character from an otome game she once played in a previous life. "I am the heroine's rival from that game? And in the bad ending, I get stabbed to death? What a joke." A story in which the protagonist is determined to avoid a yandere situation.