Momoko Sakurada, a super beautiful girl, is an idol at the school. She even has a fan club called "Association to Protect Momoko's Purity!" The leader of the group, Keiichi Todo, worships Momoko as a goddess, but she is also favored by her childhood friend, and whether she is serious or joking, she is even boldly seduced. One day, there is a disappointing rumor about Momoko. Was it just a boy's fantasy that she was innocent?!