The hugely popular Saki Ninomiya finally makes her first full-scale rape appearance in this legendary series! One day, Saki, who was popular with her students for being serious, is raped by her student Tomita, who has feelings for her. Saki trusted Tomita and didn't tell anyone about her secret, but he uses it to blackmail her, and her days as a sex slave begin... As she is raped over and over again by her colleagues and students, her body craves them and accepts their dicks, despite her reason... "Teacher, please teach us a lesson with our dicks."