Yuki, a 31-year-old office lady, is currently in a romantic relationship with her boss at work. Embarrassingly, he is her first-ever lover. However, she feels that their relationship is far from ordinary.
The trigger was a business entertainment event. She was called with him to the home of a sexually harassing company president. "He's an important client, so please bear with it a little," he had told her beforehand. As expected, both she and he were made to drink heavily. Since he was there, she thinks she let her guard down. When the drunk president touched her body and pressed in on her, she tried to seek help from him. But he had passed out from drinking and was asleep.
She was forcefully pressed on as she was. However, she realized midway. He was pretending to be asleep. Without understanding what was happening, she stifled her voice and gave her body to the president beside him, who was faking sleep. In the taxi on the way back, he asked her, "How was the sex with the president?" He had been in on it all along.
He was extremely excited. He took her straight to a hotel, and while making her recount her impressions of sex with the president, he fucked her roughly as if trying to kill her. That was just the beginning. Since then, she has been fucked by other men in front of him.