The security guard works at the entrance of Guanlan Residential Area, where You Huan lives. When Ji Wangyu drives Li Mai home, they stop to report to the guard before being allowed inside. This guard represents the security measures of the upscale neighborhood and the routine interactions of daily life. Although his role is minimal, his presence underscores the different social environments Li Mai navigates—from the modest rental she plans to move into to the guarded community of her friend. He is a functionary in the background, yet his action is a small but necessary step in the narrative.
