University student Nohara has a boy friend Akito. Akito travels aboard with his friends leaving Nohara who doesnt know how to swim. To surprise his boy friend, Nohara decides to attend swimming classes. Eventually, she has a secret affair with the guy in the swimming class… Erika loves her step-brother but this brother has no feeling about her. She has unspeakable passion towards him. She follows him into the bathroom after the swimming class lớp học dạy bơi 18+ vietsub, lớp học dạy bơi 18+ 2009, lớp học dạy bơi 18+ nhật bản, swimming class 18+ vietsub, swimming class 18+ 2009, swimming class 18+ nhật bản