Lin Wan, an independent modern woman, dies unexpectedly and wakes up as a newborn baby girl. She also has a father who is so handsome he could shame the gods, yet cold enough to freeze the air around him: the CEO Su Chenyuan. Unable to change her infant body or her wealthy family’s circumstances, Lin Wan, now Su Nianwan, decides to make the best of things. She’ll use the wisdom and experience from her previous life to enjoy this new one and “lie flat”, no, to live well, and maybe “train” her icy father a little, help him work through his emotional baggage, and see what storms are brewing behind the gates of the wealthy. From a baby who can do nothing but cry, she gradually reveals a maturity and intelligence well beyond her years. Su Chenyuan goes from being flustered and coldly detached to a doting father who spoils his daughter rotten. Together, they face challenges in the family and the business world. In the end, the heroine gains abundant fatherly love and affection, and finds her own sense of purpose and happiness.