Rihana, who found lipstick stains on her husband's Y-shirt when he returned home late at night. Unable to suppress her anxiety, Rihana picked up her husband's phone and discovered the existence of Reiko, a coworker of his. Steeling herself, Rihana went to her husband's workplace to confront Reiko. However, Reiko showed no surprise, as if she had been expecting her, and began touching Rihana's body. Unable to resist due to the aphrodisiac mixed into the tea she was given, Rihana felt sensations she couldn't control. Reiko's true intention, which Rihana had thought was an affair with her husband, was actually Rihana herself from the beginning...
