Bachelor executive Shinsuke Sakuma is an egotistic narcissist with a callous attitude toward females, preferring one-night stands to serious relationships.
At his PR company, Cyberplan, he thrives on the high pressure. But when his project for Nissei Motors is shot down — for reasons that appear due to bad personal chemistry with Katsutoshi Katsuragi, the chairman’s son — Sakuma feels an urge to get even, somehow. That opportunity knocks, unexpectedly, when by chance Sakuma encounters Juri, Katsuragi’s adult daughter out of wedlock. Juri hates her old man and her half sister, and wants to scam him out of some money so she can leave Japan and go her own way.