This is Rondo, a soapland exclusively for women, located on the outskirts of Yoshiwara. The number of customers has been increasing by selling the best service and the best breasts. Then, one day... the friendly atmosphere changes completely with a single word from the manager. "I'll give 1 million yen to the girl with the highest sales next month." The curtain rises on the Yoshiwara lesbian war, involving the busty soapland girls Rena, the floating No. 1, Airi with the super body, and even newcomers Yumi and Chinami!