At a cookie-themed academy, a lowborn biscuit girl is bullied by nobles. Jealous of the noble who once saved her, she kidnaps her and forces her boyfriend to change her face. She poses as a noble heiress and becomes an heir's fiancée, but the drug lasts only 72 hours. As the school ball approaches, her reborn boyfriend exposes the scheme, and everyone must face the cost of their greed.
