"Light and Shadow in the Cup" is an urban love novel about encounter, closeness and healing. The male protagonist Xu Mo is a bartender. He is used to observing people's hearts between the night and the shadow of the glass. He mixes other people's stories with glasses of wine, but rarely reveals his own emotions. The heroine Lin Xiao is a photography student who is sensitive and enthusiastic. She likes to use the lens to capture the overlooked moments in life. By chance, she took a photo of the light and shadow reflected by the wine glass, and also captured Xu Mo's quiet silhouette, and the fate of the two was intertwined.
From a photo to a glass of special concoction, from unfamiliar testing to mutual understanding, Xu Mo and Lin Xiao slowly approached amidst the aroma of wine and the sound of the shutter. She used the camera to see his soft side under his silent appearance, and he responded to her curiosity and sincerity about the world with his wine glass. The novel uses delicate and gentle writing to describe the process of two young people illuminating each other between reality and ideals, loneliness and companionship. It tells a love story that started by accident but became firm because of sincerity.