I didn't watch this, but Nino reminds me of Naka Riisa in these caps.

Yeah Nino is really a mover when he sits. I actually feel like quite a lot of JE guys (at least ones I've seen a bit on variety shows that involve sitting) are. Nishikido might be the worst. It's weird because most actors, comedians, and other talents don't do it, so it makes them look really uncivilized or something.