Yin Jun and Gu Ze were two people whose lives were supposed to have no intersection at all. It would have been true if Yin Jun had not walked into that small courtyard, but Yin Jun did. Not only did he walk into the small courtyard, he also walked into Gu Ze's life, and he never came out again.
This article tells the story of the son of a coal boss who happened to meet a "dog thief". From then on, the two people's life paths crossed and crossed again and finally merged into one. The process was easy. Although there were more supporting actresses, it did not hinder the male and female protagonists from running towards happiness.
In a sentence: Yin Jun didn't realize until many years later that she actually walked into the most beautiful youth of her life.