Karin Kitaoaka, a truant student, couldn't fit in with her class full of dirty talk and spent her days secluded at home, deepening her knowledge of erotic topics. When a teacher visits her home, unaware of the situation, and starts discussing her concerns, Karin immediately confesses, "I want to become a sexy adult." This leads into a story where the adorable, innocent schoolgirl in uniform loses her virginity through intense, focused blowjob training. Karin Kitaoka's school uniform look holds a charm that was simply meant to be revealed.