He, the beloved son of heaven, fell in love with someone he shouldn't love, the king of a country. Haha, if I were not the emperor, would you not hate me so much?
He, a killer from another world, lives to protect that person every day after his rebirth. Is he the emperor's secret guard? Is he just a secret guard? Can he only be a secret guard?
With special identities and confused feelings, can two powerful people maintain this special balance forever?