A car accident leaves Ji Changle severely injured, and the baby in her womb is forcibly miscarried. She is on the verge of death, yet her fiancé Xiao Yi'an stays constantly by the side of his childhood friend Tang Yi—even giving Tang Yi the blood bag meant to save Ji Changle's life. It turns out Tang Yi deliberately told Xiao Yi'an that Ji Changle's negligence caused the accident, and that she herself was injured while trying to save Ji Changle. For years, Xiao Yi'an has mistakenly believed that the person who saved his life back then was his childhood friend Tang Yi, so he has taken great care of her and quarreled with Ji Changle many times. What he does not know is that the one who truly saved him was Ji Changle.