A sudden change in the palace forced one of them to live among the people, while the other held an important position as the crown prince. Due to fate, the two became sworn friends as teenagers. Ten years later, one is the Prince of Loulan and the other is the Prince of the Yun Kingdom. One is burdened with a blood feud, and the other is facing internal and external troubles. The two proud sons of heaven are struggling in the whirlpool of power, but they are entangled in love and hate in the sea of love. Should they miss each other, or stay together...