Mizuki Miyama is a picture-perfect student and school idol at Seihou Girls Academy. As student council president, she makes sure everyone in the student body is kept safe, especially her naïve sister, Manaka. Mizuki is shocked though when she learns her

Using hypnosis, Tanaka appoints himself the school's Sexual Counselor, in charge of training the girls of his school how to have sex, all while their boyfriends are watching!