A downtrodden substitute swim coach, frequently bullied and humiliated by the girls he is assigned to lead, discovers a mysterious power that allows him to control women's bodies against their will. After meeting Sayuki, a transfer student who resembles a former flame and distant relative, he uses his newfound ability to force her into a series of sexual encounters despite her protests. Now empowered, he vows to use this control to get revenge on everyone who ever looked down on him.
Seeking a new target to test the limits of his powers, the protagonist sets his sights on the kind-hearted Houzuki Noeru. Using his ability to control others' bodies, he forces Noeru into a series of involuntary sexual acts, overriding her will and protests. Through a series of encounters at school, he subjects her to complete humiliation, culminating in a forced sexual encounter that leaves her powerless.