Rei Kido

After getting out of prison, a young yakuza tries to find out who killed his girlfriend, attempts not to get drawn back into crime, and to find his missing sister.

Sadao, is saved from death at the hands of Goro, a killer belonging to a rival gang by Joji just released from prison who has resolved to turn over a new leaf. He has returned, however, because of Keiko, his sweetheart, who he now finds is engaged to Noboru, a detective and son of Jinsaku, boss of the Otsu gang. That night at the night club, headquarters of the Highlight Group - which Noboru is investigating, Majima meets Joji who knows of his attempt to kill Jinsaku, and resolves to kill him.

When Ryuji - the Gun Slinger, a drug addict leaves hospital to which he was taken after a gunfight by a notorious killer named Gin of Colt, he is employed as a bodyguard by Yo Sangen, chief of a narcotics smuggling ring.