There is a wonderful time-space convenience store hidden in an old urban neighborhood, which connects different time-space nodes and allows for the exchange of items, but the rules are mysterious. 25-Year-old Lin Xiao took over a small shop after her parents disappeared. She accidentally triggered a time and space exchange and received a letter asking for help from a century ago. She explores hand in hand with her friend Su Ran, a graduate student in physics, while using the power of time and space to help others solve problems - helping bankrupt entrepreneurs turn around, helping musicians gain inspiration, and helping the police solve unsolved cases, while at the same time fighting against the mysterious organization that attempts to control time and space for personal gain. In the process, Lin Xiao grew up in the drastic changes in the business model, her relationship with Su Ran warmed up, and she formed a deep friendship with Grandma Li and Xiaoyu. She also repaired the lack of family affection in her heart while searching for the truth behind her parents' disappearance. When a mysterious organization stole the core props, causing chaos in time and space, and frequent phenomena in the city, they went deep into dangerous situations to regain them, and Lin Xiao even realized the rules were reversed. In the end, everyone protected the balance of time and space, and the shop continued to convey love and hope, using warmth to fight the unknown, and questioning the meaning of time, destiny and emotion in a fantasy adventure.
