Great month!
I've never played any Yakuza game. Is it ok to just jump on in With this game or should I play some of the earlier ones first?
i recommend playing them all in order. the sequels have a recap section but it only shows mainline stuff and glosses over a lot of other things. if you don't have time or a choice, start at Y3 at least. if you can't, just play Y4 and see if you like it.
The Yakuza series is basically a JRPG set in modern Japan with brawler combat. Lots of fun.