It's true that episode 4 could have been the last, but this gives closure to the generation. A seed was planted in the last conversation of #4 that is the main plot device - it shows the modernization of yakuza as society and 'rule of law' strengthen. By the way, if you're going to get assassinated you might as well do it in a Chrysler New Yorker!
Completes the 5-film cycle with the same furious fighting style as before. Lot more sitting at tables and screaming at each other in this one. Seems a bit "tacked on" and looking to wrap things up, but still worth the watch in conjunction with the previous four. Entertaining and fun.
After watching the five parts of "The Yakuza Papers" I have to compliment on the ambitious project. Although the films are not always easy to follow (especially the first one if you have to get used to the style semi-documentary) they must be considered as important cinematic examination of the Japanese post-war society.
The last film of the series really shows that everything comes full circle. Yakuzas will always be yakuzas, and their egos and greed will forever keep the violence alive. It's a pretty bitter ending but it really couldn't have ended any other way. Probably the least complicated film in the series but a great send-off for these strangely likeable anti-heroes.