Wen Xu and Zhou Heng have been married for three years. While picking him up at the airport, Wen Xu unexpectedly runs into Zhou Heng going to pick up his first love, Xu Nian, while the person Wen Xu has been waiting for is her own ex, Jiang Chi. Xu Nian and Jiang Chi actually turn out to be traveling companions returning together. After marriage, Zhou Heng caters to Xu Nian in every way, remembering her preferences, yet remains completely unaware that Wen Xu is allergic to lily pollen. When they encounter danger at a dinner party, Zhou Heng prioritizes protecting Xu Nian, completely ignoring Wen Xu who has been scalded by hot soup. On their wedding anniversary, Zhou Heng lies about working overtime, but is actually making a birthday cake for Xu Nian, and even the gift he gives Wen Xu was chosen by Xu Nian. Heartbroken, Wen Xu asks for a divorce. Xu Nian deliberately creates misunderstandings to provoke the two of them, and Jiang Chi brings out evidence to clarify past misunderstandings from back then.