Nanami Hina, the homeroom teacher of the masochistic class at Tokyo Slut Ejaculation Control Academy, is busy every day instructing and controlling erections and ejaculation. You're not going to just let out your semen on your own, are you? You need to keep your balls full. She ties his balls with string and controls his ejaculation. Look at the teacher's pussy and stroke your dick. When you're about to cum, stop yourself. She tells him to control himself. With the sadistic teacher Hina agonizing instruction to control his penis juice, this is the school life of a masochistic male student who can't hold back and ejaculates multiple times every day.