On the eve of her engagement, Ding Dang reunites with her first love, Chen A Ming, only to discover that he has changed his name to Yu Kun and has a new identity. To cure Chen A Ming's personality split caused by the failure of an experiment, Ding Dang and her friends secretly plot a "sugar-coated" plan to guide him to confront his past pain and break free from his torn emotions and memories.(Source: Chinese = Tencent || Translation = MyDramaList)