He is Mu Jin, the second prince of the Mu Kingdom who was pampered and raised since childhood. An accident made him fall in love with the person he shouldn't have fallen in love with.
He is Xiao Xun, the prince of Xiao Kingdom who was given high hopes at birth. He has done a wrong thing and has to spend the rest of his life to pay for it.
In the early stage, he was squeamish but in the later stage, he was the cold and cool second prince × gentle in appearance and cool in heart, the ruthless prince
Intention: I am willing to prove my love for you throughout my life