I'm trying to identify a film I watched about 6-7 years ago. I'm not sure when it was made, but it didn't seem like it would be earlier than the 90s.
It was probably Japanese (though possibly Korean), and it involved some kind of mystical power source which could only be accessed at a specific time once every hundred years, possibly also only by people of a particular bloodline?
Two groups were both attempting to obtain this power, and there was a lot of action set in a forest, with at least one of the group being mobsters who turned up with guns in a car. There was lot of martial-arts style fighting, some gun fights, and possibly also some kind of creatures (e.g. zombies or vampires?) around.
I remember the brief final scene was set at the next 100-year opportunity, in a city, with the person who'd obtained the power last time facing off against a gang.
Does anyone recognise this?