Female teacher ejaculates 20 times in a row - Mizuno Asahi IESP-593

Hot and beautiful female teacher, Mizuno Asahi. She has a secret: to improve her students' grades, she engages in sexual activity with them. However, her colleagues find out and use this to blackmail her into sexual assault. Later, the principal and homeroom teachers find out, and she and her students end up engaging in group rape, culminating in 20 consecutive ejaculations…!