The seemingly normal bookshop keeper Ellie has a secret: she gives s*x education classes to the noblemen as a side job. In fact, she’s so skilled that she’s been assigned to handle the crown prince’s s*x education, which poses a challenge for her. The challenge: the prince is earnest, but he’s unable to “study”, which results in the crown prince making a proposal to Ellie to teach him with her body instead. Will Ellie be able to successfully go through with the Crown Prince’s s*x education?