Sumire Kuramoto, the top student in her class, is always studying. A male student who happened to score 100 points on a test by sheer luck was asked by Sumire, 'I want you to teach me how to study,' and they ended up having a study session at his home after school. There, he served tea laced with aphrodisiac to see what would happen if he gave it to a girl… For some reason, her body started to feel hot and throb between the legs, reacting abnormally to the piston action of her classmate's dick, almost breaking into a convulsive orgasm！！ Her slender body arched like a bow, and after being creampied multiple times, she became addicted to sex rather than studying…
