During summer vacation, classmates Ken and Kakeru visit the public pool. According to rumors, a busty beauty comes here three times a week. While waiting with high expectations, Ai arrives with breasts even larger than they imagined. The two strike up a friendship, but when other classmates who have also fallen for Ai appear, a fierce battle for her affection begins, and the public pool is gradually overrun by students in the heat of their sexual desires...
