A sexually aggressive high school girl confesses to her teacher, "Come inside me..."—one sentence that shatters his composure and ignites a forbidden romance. Natsu helps her beloved teacher move due to his upcoming marriage, but overwhelmed by emotion, she embraces him from behind, leading to an illicit encounter. Though slightly well-endowed, she had been studying alone at home when she suddenly confesses, "I want to have sex with you, sensei!" Before he can refuse, she mounts him cowgirl-style and takes him raw. Then, Mizuki, his mistress, barges in unannounced, and while his wife is away, they indulge in unprotected sex. Forced into repeated creampie sessions, the teacher finds himself caught in a whirlwind of raw, emotional moments with these beautiful, insatiable schoolgirls.