IESP-468 - Female teacher's degradation, 20 consecutive times in front of the whole school

Yuka Osawa, a pure-hearted teacher at an all-boys school, falls from grace after a colleague's scheme ruins her reputation. Once respected, she now finds herself at the mercy of lustful students and faculty. As she is repeatedly violated and filled with seed, she loses all control, eventually becoming nothing more than a sex slave within the very school she once taught in.