He was originally a chess piece of a country with paralyzed legs. He endured the humiliation and came to another country to work as an undercover agent to steal secrets and destroy his kingdom in one fell swoop, but he couldn't help but love him deeply.
He is the king of a country and is so cold to everyone. It was not until he met him that he discovered the softness in his heart. He loved him, respected him and took care of him. He wanted to grow old together, but he found that the person he loved so much wanted to kill him.