" White Night Walk " was one of Keigo Higashino's masterpieces. The plot was compact and full of suspense. There were many details and foreshadowing that were easily overlooked. The following are some of the details and foreshadowing that are easily overlooked: 1 Night Walk on the Cold Spring: Night Walk on the Cold Spring is the first scene in the novel where the name "White Night Walk" appears. It is also the beginning of the whole story. In the novel, the Night Walk at the Cold Spring was described as a mysterious night. In this scene, the author did not directly describe the identity and background of the "White Night Walk", but the readers could guess the plot development of the story through the combination of the name. 2. Genji's "Yukio Mishima": In the novel, Genji frequently mentioned "Yukio Mishima" but did not explain what connection he had with "White Night Walk". However, the reader could guess this clue through some plots and character relationships in the novel, and then infer the identity and background of "Bai Yexing". 3. The relationship between Ando Sakura and Fujido Shizuka: In the novel, Ando Sakura and Fujido Shizuka are mutually dependent, but there is no clear relationship between them. However, through the combination of their names and some of the plots in the novel, the readers could guess the relationship between them and infer the identity and background of "Bai Yexing". 4. Crows appear many times in the novel: In the novel, crows are a very important image. They often appear in the night sky and symbolize darkness and mystery. Through the appearance of the crow, the author could hint at the relationship between the plot and the characters and guide the reader to read in depth. 5. White Valentine's Day in the novel: In the novel, White Valentine's Day is a very mysterious festival. It is not described in detail, but through some plots and character relationships in the novel, readers can guess the meaning and background of this festival and infer the identity and background of White Night.