Onna Kyoushi Yumi no Houkago

Teacher Yumi is a hot beauty and every boys in school and vice principal wants to taste her sexiness. One day, she was sexually harassed by the Vice-Principal but she escaped. One thing leads to another when she got home and she breaks up with his horny boyfriend... and before she knows it, the vice principal and some very horny students trap her into a hot and heavy orgy.After ravishing her over and over again, they make her swear to become their secret sex slave. Now, Yumi's only hope is the reluctant Katsutoshi and his perky girlfriend Keiko. But even with their help, it'll be hard for Yumi to escape her bonds of sexual slavery, since everyone seems to be hot for teacher...