Ena, a female college student, is a popular private tutor who teaches her studies in a kind, cunning and cute way. It's been almost three months since she started teaching Ayumu. Ena is close to Ayumu, and Ayumu, who is not used to being around girls at an all-boys school, feels excited every time he attends class, and after class he always gets aroused and masturbates. One day, he takes class while hiding his smartphone under the desk in an attempt to peek under Ena's skirt, but...