Yu Huan's heartbeat is a secret that has been hidden for more than ten years in the troubled times of the Republic of China.
When he was young, he caught a glimpse of the young man in the clouds who protected him from bullying. From then on, a seed was buried in his heart and grew into a vine that he dared not speak of in the turbulent years.
Many years later, he returned under a pseudonym, with revenge as his only goal, and dealt with all forces, making every move. I thought my heart was as hard as iron, but during my repeated interactions with Mu Yansui, my heart was opened by his magnanimity and protection.
Mu Yansui never thought that the only exception in his life would be this man with a gentle and harmless smile. When a straight man meets a forbearing avenger, a secret love that spans time will finally have a belated echo in the chaos of war.
Intention: Yu Huan returns with the heartbeat he dared not express when he was a boy. He plays revenge as a chess piece and plays every step of the way. However, in his dealings with Mu Yansui, he is heartbroken by his magnanimity and protection time and time again.
Mu Yansui never thought that the only exception in his life would be this man with a gentle and harmless smile.
In the troubled times of the Republic of China, hatred and love intertwined, prejudice and sincerity collided. They must eventually learn to face their hearts and reconcile with themselves on the chessboard of fate.