Zi Xing and Gao Yichen met at a wedding, and after secret arrangements by Zi Xing's friend Han Xiao, they started their "living together" life. The two young people who had no intersection before collided with each other with their lingering stories. Instead of the regret of meeting each other for the first time, they felt it was so good to know you after all the vicissitudes of life. . . . . .