Ai Haneda stands at the podium as a temporary math teacher at ○ school. One day, after a series of smooth days, she is attacked by students at school! After being subjected to relentless sexual abuse many times every day, her pure white naked body knows the pleasure and cannot refuse, her body reacts on its own! Kokoro, even her heart becomes captivated by the throbbing, erect cock! One day, when she is at the limit of her physical and mental fatigue, she learns a shocking truth that almost breaks Kokoro!