Lin Wu had a crush on Song Ye when he was in high school and had liked him for five years. Due to the marriage between their two families, Lin Wu was forced to move in with Song Ye in order to be pregnant with his child. Song Ye suspected that Lin Wu was an informant sent by his stepmother and made things difficult for him at every turn, but he didn't know that when he was at his most vulnerable, Lin Wu silently helped him a lot. When Lin Wu was about to leave, Song Ye realized that he had fallen deeply in love with her.