sleepingbaku's manga / #slave(2)

To protect his seer sister Hisoku from the Blue King Azure, Sage enters the blue palace and impersonates her. After Azure reveals Sage is not Hisoku, Sage expresses his desire to protect his sister and, impressed with his dedication and nerve, Azure allows Sage to replace Hisoku and receives protection as a blue princess by sleeping with Azure to obtain the blue tincture.

While in Monaco for a business party, the heir to Nikaido Automobile, Tsukasa, suddenly finds himself being kidnapped and actioned off. Tsukasa is bought by an infamous investor know only as The Earl. However, while trying to defend himself from The Earl's assault, Tsukasa knocks off his mask, discovering The Earls true identity as Shougo, Tsukasa's childhood friend who he's been searching for since he disappeared 10 years ago.