To pay off her husband's debts, Ryo begins working at a certain brothel. At first, she is hesitant, but thanks to newcomers Henri and Yuuko, who came at the same time, she is able to find her place. She is sexually harassed by sex trainer Kawamoto and employee Nojima, but Ryo, who has always enjoyed sex, gradually begins to look forward to Kawamoto's training and begins to like working there...