In the world of nobility, Mary Albert, the elegant daughter of a prominent duke, harbors a peculiar aspiration hidden beneath her perfect facade. At her school's entrance ceremony, she has a startling revelation—she is a character in an otome game from her previous life, destined to play the role of the villainess. Embracing her predestined path, Mary gleefully embraces her wicked nature, determined to fulfill her tragic fate despite the disapproval of her skeptical servant, Adi. As she endeavors to mistreat the virtuous heroine, Alicia, Mary finds herself perplexed as her malicious intentions seem to backfire, leading to an unexpected friendship blooming between them. Amidst the chaos, Mary must navigate the complexities of her newfound reality and unravel the mystery of how to bring about her own downfall as the villainess.