Marie is saddled with an outrageous debt and forced to work as a seamstress in a brothel. Thanks to the blessing of fairies, the clothes she makes are said to hold mysterious powers, earning her fame under the secret name “Orihime”, though no one knows her true identity. She lives a modest life, but one day her unruly childhood friend, Gilian, arranges to sell her body. Marie is faced with two impossible choices: repay her debt in full at once, or become Gilian’s exclusive courtesan… Just as despair sets in, a dashing woman disguised as a man—Emma—appears before her. Noticing Marie’s uncanny resemblance to her runaway sister, Maria, Emma pleads for her to take Maria’s place. The goal: deceive Maria’s fiancé, Carlo. The reward: the complete repayment of Marie’s crushing debt. After much hesitation, Marie accepts. She undergoes the education of a count’s daughter, and begins attending the academy in Maria’s place alongside Carlo… but what awaits her there?