The older the 70-year-old lady Shen Mengjun (played by Gui Yalei), the worse her temper becomes. Gradually, no one is willing to live with her except the housekeeper Li Dahai (played by Wang Deshun). After her daughter-in-law Yang Qin (played by Li Yijuan) was hospitalized due to excessive stress, Shen Mengjun was finally sent to a nursing home by her family. In anger and sadness, Shen Mengjun decided to leave her last appearance in the photo studio, but she did not expect to start a fantasy journey of rejuvenation. In the blink of an eye, the wrinkled Shen Mengjun turned into a 20-year-old young girl Meng Lijun (played by Yang Zishan). The rejuvenated Shen Mengjun not only experienced the opportunities and vitality brought by youth, but also tasted the sour taste of love. However, just when she was immersed in the illusion of happiness and could not extricate herself, an accident threw her to the crossroads of life. At the age of 20 or 70, Shen Mengjun had to make a choice.