The 27-year-old He Meng has a deep memory of his ex-boyfriend, who plays the role of "promoter" in the love affairs of the three most important women in his life, but his love has failed him. Jiang Yantao, the son of his father's best friend, pursues He Meng hard, and there is a "woman" beside He Meng who talks about everything. There is stability on one side and excitement on the other. How to choose?