Mary Albert, the daughter of a wealthy and influential duke, appears to be the epitome of a perfect young lady with her elegant silver curls and flawless etiquette. However, Mary harbors a unique aspiration that defies societal norms—she seeks her own downfall! During her school entrance ceremony, Mary has a shocking realization that she is stuck in a romantic simulation game from her past life. To make matters worse, she discovers that she is cast as the villainess, destined to antagonize the heroine, face expulsion from high society, and meet a tragic end. While many would strive to avoid such a bleak future, Mary embraces her sinister role with enthusiasm, determined to embrace her inevitable demise. As she schemes to fulfill her villainous destiny by tormenting the protagonist, Alicia, Mary encounters unexpected obstacles. Despite her attempts to intimidate Alicia, the kind-hearted girl remains oblivious to Mary's malicious schemes and instead extends a hand of friendship. Faced with this unexpected turn of events, Mary must navigate the complexities of her dual identity to bring about the calamitous fate she craves.