Kazuya moved to Tokyo hoping to enter university, but after failing the entrance exam three years in a row, the adult applicant spends every day masturbating and blames his tutors. Then the legendary beautiful tutor Akari Niimura arrives, famous for always improving her students' scores. Her shocking method alternates gentle words of comfort with ruthless verbal humiliation, using filthy talk to scramble and stimulate his brain until the pleasure itself makes him cum.