An elite figure in the Ping An City Bureau, brave and righteous, nicknamed Big Stick.He is good at arresting and chasing, and is the force responsible for “Three Old Boys”. When he was young, he was a loner and brave, powerful in both black and white. After the death of Er Dongzi, he formed a feud with Da Beitou, and “Three Old Boys” disbanded.He also became increasingly depressed, and finally became a patrolman.As he got older, he became impulsive, rude in words and deeds, a little foolish, and he didn't do things very wisely. He was straightforward, but he had rich experience and was a good policeman who moved forward courageously.