A grudge between a wealthy family caused by an emotional entanglement twenty years ago. Xiaohan and Azhe are a pair of unrelated siblings, but the obstacles between them have led to the deterioration of their relationship. Azhe traveled abroad because of the death of his girlfriend, while Xiaohan made a lot of efforts to relieve his brother's dislike of him, but ignored You Yeqing, who had always liked her silently and helped her in private. After Azhe returned to China, his younger sister entered the same school as him, which triggered a new round of emotional entanglements, even involving his own parents. After several twists and turns, the family's grudges were brought out, and the brother and sister finally understood their respective life experiences. The emotions that have been suppressed for many years burst out immediately, but can they be happy?