Mizutani, working at a major trading company, finds his promotion blocked due to a deteriorating relationship with his department chief. Seeking revenge, he hires someone to investigate the chief's background. Although the chief appears to live a happy life—married to the daughter of a trading company president and having one daughter—it's revealed he has been concealing embezzlement. Grinning with satisfaction, Mizutani says, "Just reporting this to the company isn't enough. I'm going to turn that voluptuous body of his wife into my personal sex slave●."