The films spans two decades as the story unfolds in a series of flashbacks that begin when Qiyue and Ansheng were just thirteen. The two became inseparable until they met a boy who ended up tearing their lives apart.
The film tells a story of 2 girls who were born on the same day and unintentionally switched at birth. Their lives are completed changed due to the misplacement when they are returned to their respective families.
