Three years after their breakup, Cheng Ling runs into her ex-boyfriend, Shen Huaiqiu, at a furniture store. She is now a sales associate, while he arrives with another woman to buy a bed and humiliates her with accusations of betrayal. Cheng Ling hides both her tumor diagnosis and the fact that her three-year-old son, An'an, is his child. When An'an uses an old phone to call Shen Huaiqiu and calls him "Dad," the truth is revealed. A paternity test confirms his identity as the father, and the truth behind Shen Huaiqiu's mother's coercion that drove Cheng Ling away three years earlier finally comes to light. Shen Huaiqiu accompanies her through surgery and proposes to her. After enduring misunderstandings and illness, the family of three finally returns to their home filled with blooming flowers.