New social studies teacher Ms. Nanjou Miyako exudes a quiet, refined charm laced with hidden sensuality, driving students wild one after another. With the excuse that she hasn't had a boyfriend in over a year, she's ambushed by her male students. The school doctor orders full nudity to check the students' erection status, and their reactions turn unexpectedly erotic. As each student's condition is examined, one nervously sweats and murmurs, "Yes... (with a cock in my face)." To build intimacy, they jerk each other off, splattering cum all over their uniforms. The scent triggers nostalgic emotions in Ms. Nanjou, who murmurs, "It's... familiar..." Breast examinations follow, and the boys shout, "Ms. Nanjou! Your face and tits are way too sexy!" Vaginal measurements are conducted, leaving students stunned at first—"Huh? What?"—but gradually drawn into the lewd experience. The doctor demonstrates sex selection techniques in front of the class. When inexperienced students receive deep throat penetration, they begin to reveal their slutty sides. Taken doggystyle like a bitch in heat, thick, rock-hard cocks piston violently inside them. As the inner folds cling tightly, students cry out, "Ah◆ahh◆!" They're flipped into standing doggy for better visibility, and the chemistry with the doctor grows so intense it becomes even more ferocious. Overwhelmed by long-forgotten pleasure, Ms. Nanjou loses control, engaging in wild, uninhibited acts. She orgasms repeatedly, her climax cycles growing shorter and more frequent, trembling with each successive peak. "For a boy, deep inside— for a girl, shallow and near the entrance," she explains, then asks, "Now, deep or shallow?" Swinging her peachy ass, she mockingly treats the cock like a dildo: "Like this, we get a boy, right◆?" Cowgirl position is explained as effective for conceiving boys, while missionary sees her bouncing tits and screaming, "I'm cumming! Nooo!" Her eyes roll back as she cums, shouting, "It feels sooo good◆!"—her filthy, lustful face contorted with each orgasm. Her sticky, clinging pussy triggers explosive creampie loads, and both students and Ms. Nanjou finish the lesson with deeply satisfied expressions. What an excellent class this was.