From Takashi Miike’s blog covering the production of his new film (helpfully translated and posted by the folks at Japan Film News):

“So what’re ya shooting?”
It’s a picture about a fierce battle between Aikawa Sho and a bunch of young boys.?So, half the actors are kids.
“I’ve said this before but… is that really safe?”
This is a wholesomely violent movie. You can revel in excitement that doesn’t fit within established genres, and after watching it I would like people to discuss human suffering with their mates over a few sakes at their local izakaya.
Heh heh heh. Next year’s Japan Academy Awards are all mine.