Exactly what it sounds like— it's a fighting ring. It's under West Park, in Purgatory. Not that there's any way you'd have known about that kind of place. It's harder to explain than to just show you. You can come watch the fights when they roll around.

[ It's simply not somewhere someone without some kind of tie finds themself familiar with. Assuming Mine had kept his business before the yakuza clean. As Nishikiyama sinks into his seat, he realizes it's resurfacing the memory of how they'd wound up in his apartment. Ah. He probably shouldn't say anything. ]

These events don't happen without reason. It's about reputation. They're keeping track of which families hold their own. The toughest men will be remembered too.

[ He watches himself in the car mirror. ]

Kashiwagi didn't say shit. Of course he didn't.

[ This is muttered and the part he focuses on. ]