If you loved Battles Without Honor and Humanity: Deadly Fight in Hiroshima, try Japan Organized Crime Boss
A bridge between a film you've already seen and one most people haven't. Japan Organized Crime Boss has roughly 6.9× fewer votes than Battles Without Honor and Humanity: Deadly Fight in Hiroshima — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.

Battles Without Honor and Humanity: Deadly Fight in Hiroshima

Japan Organized Crime Boss
What they share
Both films are directed by Kinji Fukasaku, and they sit in Crime / Drama territory. If that's the register that drew you to Battles Without Honor and Humanity: Deadly Fight in Hiroshima, the second film will land in a comparable space — through a different lens.
What Japan Organized Crime Boss is
You once ran a ramen stall behind the docks and never carried a knife. Now you’re free again and want a quiet life but the last boss croaks mid-meeting. Your shoestring gang gets swept between Osaka’s steel-studded clans and Tokyo’s suits over who controls the harbor. You clutch the old codes like a life raft as bullets erase honor.