Single mother Lin Wan makes a marriage agreement with Zhou Mubai to treat her sick son An’an. He covers the medical bills, and she looks after his rebellious stepson Zhou Rui. Instigated by his grandmother, Zhou Rui picks on the mother and boy and even hurts An’an by accident. During a dangerous incident, Lin Wan risks her life to save Zhou Rui, and old secrets slowly come out. It turns out Zhou Rui’s birth mother once plotted to sell a child. After the truth is revealed, Zhou Mubai wakes up and pursues Lin Wan. Zhou Rui sincerely accepts her, and the whole family lets go of resentment for a warm new start.
