Friends Never Die (2012)

A rich young man called "Gun", forms a gang with a group of friends called "SPERM". He later meets up with a guy named Song, and asks if he wanted to join the gang. Gun is a person who teaches everyone in his gang to love and protect each other, and he is also the strongest one in the gang. They are involved in many other fights between rival gangs. But his gang always get a serious problem and their friendship is tested.