Fallen married woman teacher

Sara is a female teacher who secretly had an affair with her student, Hashimoto. They get so absorbed in the thrill of dealing with someone other than their husband that they often seek each other on campus. However, unfortunately, he is found by Ueda, an inferior student in his class, and as a replacement, he is forced to forgive his body... Of course, it would not have been possible to finish it just once, and Ueda stumbles along with a photo of the evidence. He even became known to his bad friend Hirai, and he finally had to call Hashimoto to the after-school classroom...