I love YamaPair too! They complement each other really well, perhaps because they're the oldest. That child-minder ep was epic, they're like the perfect family - papa Ohno, mama Sho, and baby Koharu-chan. My heart melts every time I re-watch that ep.

I also love how Sho calls him Satoshi-kun. Seems like he's the only one who calls Ohno by his first name.