Mongkok Story (Chinese: 旺角風雲) is a 1996 Hong Kong film directed by Wilson Yip.
Members of the Fook Sung gang go out to drink together with the waiter Leung from their regular restaurant who likes to listen to their stories about triad life.
They accidentally offend members of the Lo Fung gang by talking to their girlfriends and end up in a fight in which Leung-ping's hand is injured.
Leung-ping is welcomed into the gang and discovers that Ching's pregnant wife is Chu May-yee, his childhood crush.
Lui Lone forces Leung-ping to perform oral sex on him to prove that he is free of disease.