Nijiro, a building cleaner, is popular with female employees for his good looks and smile, and is known as the "cleaning prince." But behind the scenes, he is employed by Kaji, an elite manager of a major general contractor, and engages in espionage activities for 10,000 yen per hour!? He has been Kaji's secret partner ever since he was scouted by him when he was homeless after losing his parents. "I'll do any request for you." While hiding his feelings for Kaji deep in his heart, the two of them uncover the corruption within the company!