Rau, the young master of a noble family, left home when his father issued an ultimatum: "get married or no inheritance!" His only ally was his faithful butler, Gai, who had been taking care of him since he was little… or at least, he'd thought as much. However, Gai hardly seemed sympathetic to Rau's plight, nor did he show any reaction to Rau confessing his love for him. Things finally came to a head when Rau was tricked into a marriage interview… Who indeed was the butler's true master…!?