After divorce, Xu Zhitang guards a steamed bun stall on Linjiang Old Street with her six-year-old son, Xu Xiaomai. On a stormy night, she brings Gu Yuxi, the lost little princess of the Gu family who has a high fever, back to penta... back to the stall. The child eats six steamed buns in one breath and calls her mom for the first time. Gu Yanzhou, the powerholder of the Gu family, takes out 600 million and asks her to sign a one-year fake marriage agreement. Xu Zhitang moves into the Gu family with her son, only to find that this fake marriage drags out the family members she lost six years ago, the family business that was snatched away, and a home that can truly give peace of mind to both children.