Any other fans of this in here? It seems to have a passionate following of the people that have heard of it before. I went into it blind due to good ratings on MAL and lived it right away.
It follows an ex soldier and an indigenous girl in Hokkaido. They're after a lost fortune in gold, and they only clues are contained in the mysterious tattoos of a group of escaped killers.
Also after the treasure is a rogue group of soldiers and a band of martial artists, along with some of the other killers, mob bosses, and others.
You get to learn a lot of week researched facts about the native people and their customs, history of Hokkaido and Sakhalin. And to lighten the mood, there are a ton of if gags, slapstick, sex and toilet humor, whacky versions of historical figures, and some occasional random sexy/funny male fan service. It has it all!
And fear not! The manga is complete and the last season of anime which has been simul-dubbed is in production of the final season, so it's ready for anyone to dive in.
Yes, there is so much good stuff left, if they're only doing one more season, it should be almost non-stop action. Everyone has some great fights coming up that I can't wait to see adapted. I thought all the characters except one had solid endings to their stories. You should enjoy it if you've stuck with it this far.