Lu Yuan, a big star from ten years later, accidentally appears in the home of an ordinary girl, Lin Xiao. A seventeen-year-old girl meets the 28-year-old uncle she talks about. What kind of sparks will fly between the two? When they became familiar from strangers and had some ambiguous feelings, another Lu Yuan appeared. This is a mistake caused by the chaos of time, but those mistakes will be solved. Where should they go when they should not have met in the first place?