Lady Tiararose Lapis Clementille has a sudden realization on the eve of her downfall—she is a character in the otome game she once played in a past life. Instead of becoming the beloved main love interest's paramour, Prince Hartknights Lapis-Lazuli Lactomuth, she emerges as his archnemesis, the villainous fiancée. During their graduation ceremony, Prince Hartknights accuses her of crimes she did not commit, severs their engagement, and names the game's heroine Akari as his new betrothed. Despite her innocence, Tiararose is exiled from the realm. However, before her sentence is executed, an unexpected savior emerges. Aquasteed Marineforest, the prince of a neighboring powerful nation, confesses his affection for Tiararose and proposes marriage. Embraced by another royal suitor, what lies ahead for the former villainess on her quest for a happy conclusion?