I have a private tutor. ``Mizuki Sensei'' is a bright, kind and beautiful college student, but she can be a little too nosy...It's been three months since I've been in charge, and my grades haven't changed much. Actually, I have a girlfriend, and I'm so worried about her that I can't concentrate on my studies. Moreover, he has a strong sexual desire, and he spends time every day masturbating because he is curious about her appearance and the teacher who is close to him... The teacher noticed this and made a suggestion. "Why don't you study with your teacher in case you have sex with that girl?" "I'll take care of your studying and ejaculation."