Sonatine

Murakawa, an aging Tokyo yakuza tiring of gangster life, is sent by his boss to Okinawa along with a few of his henchmen to help end a gang war, supposedly as mediators between two warring clans. He finds that the dispute between the clans is insignificant and whilst wondering why he was sent to Okinawa at all, his group is attacked in an ambush. The survivors flee and make a decision to lay low at the beach while they await further instructions.

The Revenge: A Scar That Never Disappears

Second half of the violent tale of revenge from actor Sho Aikawa and director Kiyoshi Kurosawa! It's been five years since he left the force, lost his wife, and waged all out revenge, and now our hero is idling his time with a failing yakuza group. When he discovers the secret of one of his superiors, he takes up the gun of vengeance and realizes that his life has only been to serve that purpose.