Gong Mingxue is a college student with a divorced family. She has a father who wants to use her as a cash cow, a mother who is indifferent to her, and an autistic younger brother. She finally found true love in college, but on a snowy day, her boyfriend died in a car accident, and she discovered that she was pregnant with his child. In extreme despair, he chose to commit suicide by drinking pills. Surprisingly, she went back to when she was 7 years old. Let's see how Gong Mingxue changes her life.