After they married, Gu Zexi neglected Lin Jiuxi and searched the world for his first love. On their third wedding anniversary, Lin Jiuxi brought his first love right to Gu Zexi, then happily handed him the divorce papers.
"Let's go to the civil affairs office and get the paperwork done."
"I'm busy. Make an appointment."
So Lin Jiuxi enjoyed single life while trying to book an appointment for their divorce. But even after she'd had a child who could already call them Mom and Dad, she still hadn't managed to get one.
Gu Zexi invited Lin Jiuxi and her child to move in with him. When she refused, he simply moved in with them instead. From then on, the family of three lived in happy harmony.
His first love cried and complained, feeling terribly wronged. Why had she come back? To watch them show off their love?