AGAV-029 Threatening a teacher for sex slave training, Suikiku Aoi

After school, a male teacher calls out a female student and tells her she lacks credits. He then makes her do erotic things in exchange for the credits. A common plot devised by a virgin teacher. However, the virgin teacher is instead caught by the female student's weakness and becomes her toy. His foreskin is teased, his virginity mocked, and he is trained like a sex slave. When the female student's favorite teacher appears, they have sex in front of him! The virgin teacher's scheme does not come to fruition and ends up fading away...