Suzume Mino was forced to be the younger boyfriend of an older, busty instructor with a strong sexual desire.
Mino is a beautiful swimming instructor at a certain fitness club. He's very possessive, and when he finds a guy he likes at a college student's part-time job, he approaches her with sex appeal, hoping to make him her boyfriend. "You like older people, don't you?" An older, experienced woman with huge breasts tries to make you cum inside her with confident sex... "Isn't it okay if he's my boyfriend now?"