Su Wan, an ancient book restorer, guards the "Guanxin Pavilion" at the end of the alley, spending time with yellowed pages and faded ink marks every day. Her world was like rice paper soaked by the moonlight, so quiet that only the sound of tweezers scratching the paper was left, until a Qing Dynasty "Plum Blossom Book" with broken pages broke in - the small regular script on the broken pages was gentle, hiding an unfinished past event. At the same time, Lu Shiyan, a self-proclaimed "researcher of ancient books," visited frequently. He always appeared when the afternoon sunlight was slanting, and his fingertips brushed the ancient books very gently, as if he had a secret connection with those old pages. The moonlight between the papers illuminated the secrets on the broken pages, and also quietly tied up the fate of Su Wan and Lu Shiyan, allowing the two people who were used to being alone to slowly get closer to each other in the fragrance of ink and time.