According to the video of iQiyi, in the TV series Scent, Xiaowu is the victim, not the mole. Five years ago, the Xiaowu family was killed by arson, and the murderer was at large. In order to avenge himself, Xiaowu joined the nameless gang and was sent to the patrol room as an eyeliner in order to investigate the truth and find the murderer. Xiaowu is not a traitor who betrayed the patrol room, but acts for justice.