Kana Morisawa, a perverted female teacher with a huge buttocks who graduates from school regardless of whether she's a virgin or not, in her DASS-281 series of ejaculation management and praise programs.

During class, facing graduation due to his excessive sexual desire, he was assigned to a special class. The teacher was the rumored beautiful Ms. Morisawa, who was said to have a crush on all the boys at his previous school. The teacher tied a chastity belt between his legs, which would be removed if he passed the exam, and allowed him to ejaculate if he got a perfect score. Excited at being penned by such a beautiful teacher, he decided to study hard to graduate as a virgin…