Yuki has fulfilled her dream of becoming a Japanese language teacher, starting her career at age 26. From childhood, she aspired to be a teacher—her parents are both educators, and her younger sister is following the same path, making theirs a strict, academic household. Serious since her school days, she never showed much interest in romance and has never had a boyfriend. Even after becoming a teacher, she struggles with pride in her profession and hidden sexual frustrations, especially when male students make sexually harassing remarks like, "You're still a virgin, right, sensei?"—leaving her blushing in embarrassment. After class, she strictly enforces rules during private tutoring sessions, trying her best to maintain control. On her days off, she binges anime or spends hours chatting with otaku friends at family restaurants, far more immersed in anime and geek culture than in love. But she has other ways of relieving stress—she's long enjoyed masturbating to doujinshi of her favorite characters from series like *Gin○* and *Ic○y H○ 21*. Since becoming a teacher, her sensitivity has increased, and it's said that her clitoris often becomes erect even during class. Attracted to beautiful boys, she feels this job is her true calling, surrounded daily by teenage boys around 1● years old. Yet she knows acting on her desires would be criminal, so she suppresses her urges into fantasy. One day, overwhelmed by pent-up desire, she ends up sleeping with a man for the first time at a teachers' drinking party. Her body awakens to pleasure she's never known, becoming shockingly responsive to sexual training. Having remained a virgin until now, she begins releasing her accumulated lust uncontrollably. As an otaku woman, her sexual appetite turns out to be far more intense than anyone could imagine.