Yuki is hired by the wife of Takashi Sugiura, an advertising-agency employee obsessed with his mistress. She infiltrates a restaurant he frequents and gradually gets close to him. Days later she invites him to a hotel, but the devoted husband refuses her advances. Fired up by his resistance, Yuki pins him down and takes control. Each time he is about to cum, she stops and tells him, “I won’t let you finish until you say you’ll leave your wife.” With repeated edging, she pushes his reason to the breaking point and forces him toward an impossible choice...