A young boy, Mario, is asked by his father, who works at a game company, to become a GM.
Despite his reluctance, after analyzing the game, he realizes that the stimulation he receives in the game can also be experienced in real life, and sets his sights on a quiet girl, Takashina Koharu, as an experiment.
Takashina wants to be the opposite of reality, "a character who is useful to everyone and has a beautiful personality."
However, he is assigned to a prostitute class!
After being raped by a rough man, her uterus starts tingling, even though she is still a virgin in real life.
ゲーム会社に勤務する父親からGM就任を依頼された少年・真理央。
気が乗らないながらも解析した結果、ゲーム内で受けた刺激をリアルでも経験できることに気づき、実験として大人しい少女・高科こはるに狙いを定める。
現実とは正反対の「皆の役に立ち、華のあるキャラクター」になりたいと願う高科。
しかし、与えられたクラスは娼婦だった!
荒くれ者に陵○され、リアルでは処女のままなのに子宮がうずいてしまい――。