Tang Suisui unexpectedly discovered that she could go back in time through photos. In order to win back the heart of her boyfriend who had been in love for many years, she went back to the past again and again, but returned to the future again and again until she discovered that the key to going back to the future is a person. In order not to go back to the future, she tried her best to stay with him. Jie discovered some unknown secrets.
