Lady Tiararose Lapis Clementille, on the eve of her downfall, realizes she has been reborn into the world of an otome game she once cherished. Instead of the beloved Prince Hartknights Lapis-Lazuli Lactomuth, she now embodies the role of his nemesis—the villainous fiancée. Despite her innocence, at their graduation, Prince Hartknights accuses her of crimes, nullifies their engagement, and names the new heroine, Akari, as his betrothed. Cast out of the kingdom, Tiararose faces exile until a surprising savior emerges. Aquasteed Marineforest, the prince of a neighboring realm, confesses his affection for Tiararose and proposes marriage! Embraced by a prince from another land, what destiny awaits the once-doomed antagonist on her journey towards a blissful resolution?