The leader of the alliance who once unified the martial arts world was tired of the disputes and just wanted to go into seclusion. However, he turned into a good-for-nothing young lady who was abandoned by her family and lost all her inner strength. In order to live a stable life, she agreed to marry a sick man who was rumored to be dying soon. Until their wedding night, she watched with her own eyes the husband who was coughing up blood crush the assassin's sword with his bare hands. The two looked at each other, and alarm bells rang in their hearts - who was playing who in this game?