Set at a home appliance company in Nagoya. One day, major home appliance maker Meio Electrics receives a warning letter from Zestar Research Company in America. They accuse Meio of patent infringement with solar panels, and demand a large compensation and licensing fees. Hasegawa of the Intellectual Property Department, is suspected of being a corporate spy. This unexpected occurrence happens when he has just started his married life with wife Aoi. Zestar Research Company, also called "Patent Troll", is a patent mafia that is controlled by a mysterious man named Sawada. On the other hand, Hama, who runs a lawsuit prevention service in the company, is reprimanded and insulted from his superior Muraoka. He ultimately beats Muraoka in the head and buries him in the mountains. This incident causes a fierce diplomacy that risks the "love" and "pride" of the characters.