Jiangcheng is a small town in the south of the Yangtze River, and both sides of the canal are full of fireworks. Lin Xiaoman is a food blogger, and Gu Yanzhi is a partner of "Echo". The two were college sweethearts but were separated for five years due to misunderstanding. Now Lin Xiaoman is in arrears with the rent, and Gu Yanzhi blocks the door and is forced to work as a temporary worker.
An unexpected reunion made the two discover that they still had feelings for each other while getting along. They constantly interacted in bars, offices and other scenes, and also regained a tacit understanding through various accidents. During this period, Lin Xiaoman discovered that Gu Yanzhi had been keeping the things she gave her, and also learned that the breakup was a misunderstanding.
Through experience after experience, the relationship between the two gradually warmed up, from embarrassment and excitement to solving misunderstandings. In the end, in scenes such as canal markets and cruise ships, they reunited and gained happiness.