The main character, Tanaka Hajime, uses his hypnosis abilities to hypnotize his classmates. Due to a law passed by the government, instructions given by sex instructors are absolute. Additionally, couples have to receive instruction from the instructors before having sex or even kissing. Turning down her boyfriend, Kurashiki Reina choses to receive a lesson from Tanaka. Not liking her attitude, Tanaka hypnotizes her and increases her sensitivity, causing her to cum uncontrollably. And with that, Reina is now a slave to Tanaka...