In a corner of the city, there is a seemingly ordinary small store - Time Photo Studio. The owners of the store, Cheng Xiaoshi and Lu Guang, can travel to the past through their photographs. One day, Lin Kai, a newcomer in the opera world, comes to the photo shop and commissions Cheng Xiaoshi and Lu Guang to find a copy of an image from 10 years ago. There is only 1 photo and 1 chance ....