Big breasts nursery teacher Kasumi who is targeting the dad she has been interested in during child pick-up/drop-off. One night, using the excuse that her son is asleep, she leads him to a private room for secret kissing and physical relationship. Once ignited, the man also succumbs to temptation and has affair acts night after night in the facility. With gentle motherly cowgirl position making him ejaculate multiple times and becoming captive.