"If you touch me like that... I'll come!" Rei Kouonji works at a chiropractic college, where she's called the "demon lecturer" for her incredibly strict standards. One day, she finds herself in charge of the practical massage examination for first-year students, where she meets freshman Sohei Yasaka. From the very moment Sohei begins his exam, Rei realizes that he has absolutely no idea what he's doing and finds herself unable to give him even a single mark. However, as the massage continues, her body starts to feel incredibly sensitive everywhere Sohei touches her...! "Next, I'll trace the lymph node down from your armpit!" he tells her as he starts rubbing her nipples, and Rei suddenly finds herself sopping wet! "We're in the middle of an exam, but when he starts touching me all over like that... I can't hold myself back...! Even if he is my student... I want him!!"