Childhood friends Cobra, Yamato form gang for academically excelling Noboru. Noboru's return leads to conflict between 5 gangs: Sanno Rengokai, WhiteRascals, Oya Koko, Rude Boys, Daruma Ikka in S.W.O.R.D area over unspecified reasons.

Cobra, Yamato and Noboru have been friends since they were kids. Noboru is able to score good grades and enter a university. He provides hope to Cobra and Yamato who seem to be good only at fighting. A tragedy then occurs to Noboru and the other two form the group Sanno Rengokai for him. When Noboru returns, a new incident takes place in S.W.O.R.D area dominated by 5 gangs: Sanno Rengokai, WhiteRascals, Oya Koko, Rude Boys and Daruma Ikka.