Bai Yi Tong has always been neglected and mocked by the society for being ugly until one day when she makes a wish to become beautiful. The next day when she wakes up, she indeed looks beautiful but this beauty lasts only from 6 am to 6pm.

Ren Haoming thinks it's Ruan Qingtian's mother who stole his mother's design and then killed his mother. So he asks Ruan Qingtian to be his nanny for one year to repay her mother's debts. He also marries her based on a contract, so as to take more revenge on her. However, during further investigation, he finds that the murderer is someone else. At that time, Ruan Qingtian gets pregnant with his child and prepares to get rid of his imprisonment.

A true story adapted from the story of the first martyr who died in the line of duty in the Red-crowned Crane Nature Reserve