Akiyoshi Fukae

Kikuju, a yakuza, runs off to Tokyo with his master's proposed bride on the way to her wedding and marries her, leaving a few elegantly-killed corpses behind. He works for corrupt building contractors- the normal method of getting and keeping a contract is gang fights, blackmail and bribery. An assassin from his old gang is looking for him. (imdb)

A hard-boiled hit man is caught between warring gangs

Kiba is back again, but this time he has fallen from grace and sent to prison for all the violent acts he has committed. Once he's out, he begins working as a bodyguard in a club that is crawling with gangsters.

Gen, a former ninja with a price on his head travels about Japan seeking the identity of the mysterious “Kagekubo” leader of his former group who issued a death warrant on him for desertion. (KG & me)