Don't trap in it, trust only yourself.

2 maffia clubs were helping each other for buying or selling drug, but when one undercover man got shot down the 2 clubs didn't trust anyone anymore.
1 maffia club had a real strong and cold hearted boss named, Nam Minwoo and one of his best brother who got shoot down was named, Kang Insoo.
one of the boys who worked and trained there too named, Kwang Ganghae was kinda jealous at the daughter of the death man and touched her while putting drugs in her drink named, Kim Hyejin.
she fighted against him and the boss took Ganghae and cutted and punished him...
after 5 years Ganghae came back, back with his own and 3th maffia. making his own rules and tried to be a cool and hard man like Minwoo...

how will this end and what would happend in this fight? who would be a loser and who would be the winner in the end?