Meiko, Kana, and Yuzu are working as bunny girls at a certain store. One day, a new girl named Mayu joins the store. Mayu is charming and uses her eye-catching large breasts to gain more and more customers. In an instant, she takes the No. 1 spot from the other three. Humiliated, the three seniors plot to take down Mayu, falsely accusing her of stealing the store's sales. When the Yakuza come to collect the money, the store manager puts all the blame on Mayu. Mayu is falsely accused and ends up working as a sex slave bunny girl, and her hellish days of sex-filled life begin...