First, Keika loves it when Makiyama cheers her on during her high jump practice, she just gets so turned on! Today however, she gets too turned on and cannot wait anymore! Then, Tanabe has been frequenting a swimming gym where Mikako is an instructor, and one night he catches her stealing underwear from the mens locker!

This is the tale of Miyamoto Sana, Kogure Chika, and Tazawa Anko, busty schoolgirls who each seduce a special middle aged man in their life. They all happen to be friends online and decide to go to a hot spring for an orgy...

Welcome to Shiratori Academy, a place for high class students, or so it would seem. Shouta finds himself walking by the Ladies Club room one day and hears about how all the women there are still virgins! After the girls catch him eavesdropping, they force him to join the club and make him follow their orders!