Akuyaku Reijou wa Ringoku no Outaishi ni Dekiai Sareru

On the eve of her downfall, Lady Tiararose remembers her past life, in which she played an otome game. In that game, she admired Prince Hartknights, but in this life, she is reborn not as the heroine, but as his villainous fiancée. During a graduation ceremony, Hartknights accuses her of crimes, ends their engagement, and announces his new betrothal to Akari. He sentences her to exile regardless of her innocence. Before this can happen, Aquasteed Marineforest, the prince of a neighboring kingdom, appears. He has long had feelings for Tiararose and declares his intent to marry her. As the villainess gains the attention of a foreign prince, her future remains uncertain.