Song Jiayi, a happy girl who doesn't know what sorrow is, moved her family to another city after losing her childhood sweetheart Yueyang, and met Wu Zheng, the proud son of heaven, in the new school. What is the purpose of the frequent friction and the ambiguous intertwined emotions? What does the great change in the Song family have to do with Wu Zheng? Under the entanglement and confusion, where will Song Jiayi and Wu Zheng go?