Ai Sayama always looks down on her students and vice principal. One day, she injures a student and is forced to take responsibility by being brutally licked in the ass. She moans as the pleasure wells up from her anus and has a convulsive orgasm! Unable to resist the unwanted pleasure and shame, she sweats and climaxes! It feels so good that her asshole, which she doesn't want anyone to see, is wide open!! The strict female teacher's sensitive anus is discovered, and she is turned into a female slave and human toilet.