Reiko has a hard time dealing with Kobayashi, a student who lives across the street. He's a nuisance and has cheeky behavior. If she tries to warn him off, he'll sexually harass her. Fed up with Kobayashi, who treats her like nothing more than a nagging old lady, Reiko decides to punish him in the area she's good at. Her method is to dominate him with sex... The young Kobayashi is helpless in the face of Reiko's overwhelming sexual dominance, toying with him with her adult techniques and charm, and making him smell her armpit odor. Kobayashi is helpless as Reiko, who is actually a sexual powerhouse, tries to teach him a lesson, and he is left traumatized.