I couldn't believe my classmates saw it! I'm a timid person who can't refuse cleaning duties when I'm given the task of cleaning, but when I was cleaning alone, I discovered an erotic book in a boy's desk. Then, he masturbated involuntarily in an empty classroom. Even I was surprised when a boy happened to see me in such a shameful state and suddenly became aroused!

A timid and good-natured female student who is forced to clean the classroom, which everyone hates, is intrigued by an erotic book that comes out of a boy's desk that she accidentally knocks over while cleaning. And then my hand reaches out to my crotch... A male student secretly watched such an embarrassing appearance. Sweet and sour memories after school caused by chance and teenage curiosity about sex.