The story begins with the male protagonist Ling Yexuan encountering his ex after six years. It is also his first love that triggers Ling Yexuan's memories. The acquaintance, acquaintance, and love with Duan Rui to the final parting. After six years of separation, why has Ling Yexuan not forgotten? Why haven't you had any other relationships? What kind of relationship is this relationship in Ling Yexuan's eyes? . .