A male student, taught by female teacher Yu, was crouching on the roadside at night. ``What's wrong!? There's no last train left!?'' I can't leave her alone and invite her to my house, where she tells me that her friend gave her an erection pill and no matter how many times she ejaculates, she can't stop it. Yuu feels pity and anticipation for her crotch as she gets angry at the gingin in front of her. She is urged to show me your body, and Yuu, who is weak against pressure, is carried away and ejaculates with oral sex and penetration.