When he first met her, he went to attend her "Transformation Ceremony" and he accidentally saw all of her. He fled in a hurry and ran away in despair. As the Ninth Highness of the Heavenly Clan, he secretly stored water in his dormitory to turn into ice and soaked it for a whole night. From then on, she would fall asleep every night, making him uneasy. He thought that was all, she was just a little demon, but who would have thought that when he saw her again, she would become his second sister-in-law who had never married him. So what? Being close to the water, it is not impossible to win her as a wife. But that day when he saw the demon Chi Ying raised in Si Ji Palace falling to the ground and turning into ashes due to her touch, he actually felt scared. It was then that he realized clearly that what stood between them might not be her engagement contract in the Nine Heavens at all.