This is the story of Fu Qingyan and Gu Nanxing, from their initial meeting to falling in love. Seven years ago, after a one-night stand between the two, Lin Xiaoyue took Gu Nanxing's identity, leading to numerous misunderstandings. Years later, Gu Nanxing approaches Fu Qingyan to change her fate. During her efforts to save Fu's grandmother's cat and rescue a little child, she reunites with Fu Qingyan. Over time, Fu Qingyan begins to suspect that a little girl, Apple, might be his child, and a paternity test confirms it. This revelation also exposes Lin Xiaoyue's true nature. After Fu Qingyan is poisoned, he mistakenly believes Gu Nanxing betrayed him, but eventually, the truth comes out. In the end, Fu Qingyan confesses his love to Gu Nanxing. They resolve their misunderstandings, overcome Lin Xiaoyue's interference, and hold a wedding, living happily ever after.