An Mita An is a naughty teacher who secretly gives sexy rewards to students who get good grades in order to improve the class's grades. She lets them rub her breasts, kisses them, gives them handjobs, and makes them cum with blowjobs. However, she is found out by other male teachers. To keep her quiet, An is raped. Eventually, the men's demands escalate, and she ends up with 20 consecutive creampies!