His Highness Qingqiu, Bai Xiaoxiao, went down to earth to visit his sister who married into the mortal world. He met Tang Yuan, the young master of the Tang clan, and fell in love with each other because of the investigation of a case. In the end, Tang Yuan died on the battlefield. Bai Xiaoxiao stayed by the river for 10 years and renewed their relationship.
Concept: Love has sweetness and bitterness