The male protagonist is an antique restorer who accidentally receives a damaged old-fashioned projector. During the restoration process, he discovers a mysterious film that records fragments of the female protagonist's life when she was young. The male protagonist follows the clues to find the female protagonist. At this time, the female protagonist is at a low point in her life, her career is frustrated, and she is confused about the future. The male protagonist decided to use a projector to take the female protagonist to relive the good times in the film. During the process of repairing the projector and film, the two accompanied and encouraged each other, and recalled their youthful years together. In the warmth of the old times, the female protagonist regained the courage to live, and the male protagonist also gained true love from getting along with the female protagonist.