“Everyone is born with an important role.” One day, Kuster, an ugly slave who just waits for death in a cage, is bought as an escort by the cold and beautiful second son of the lord, Julius. Because Julius was the child of a concubine, he had various feuds with his family, and he regularly had sex with male "guests". At first, Julius was indifferent to Kuster, but he opened his tightly closed heart to the pure and devoted Kuster.