Issei and Ryouichi share a close bond dating back to their childhood since they are cousins. In their formative years, their relationship was marked by a peculiar master-slave dynamic, with Issei playing the dominant role due to his future position as the president's inheritor of a large company, while Ryouichi meekly complied as a gloomy submissive. Ryouichi has always yielded to Issei's every whim and desire. But with both now working at the same company after several years, could their relationship dynamics have shifted?