After his parents passed away, Gu Qiaonan was adopted by the Lu family and betrothed to the three daughters of the Lu family, with an agreement to marry one of them at age 22. Later, due to the appearance of Shen Huaichu, he was stood up by the three Lu sisters. In his despair, he had a flash marriage with Yu Zhiyuan, who had secretly loved him for years. The three sisters refused to believe that Gu Qiaonan had married someone else, thinking he was just acting. To teach him a lesson, they deliberately favored Shen Huaichu, pushed Gu Qiaonan away time and again, and even gave his deceased parents' heirlooms to Shen Huaichu, causing Gu Qiaonan to completely lose all hope in them.