San Gou is mentioned in the opening paragraph of the story. Yu Yuan recalls that he was playing a hardcore search-and-evac game with San Gou and Lao Deng before being transported to the wasteland world. The game involved a battle of wits, but San Gou never appears in the wasteland narrative. His name is only used as a reference to the game Yu Yuan was originally playing. No information about his role, appearance, or personality is provided. He is a background character from the pre-wasteland setting, and his existence is limited to that single mention.
