She got those lines that Okuyasu's face has and I don't think there are many other ZA HANDO out there. Adding to the fact that the anime is currently airing, making the chance of getting referenced to be higher, I'm 99% sure Sanae is referencing the Stand, "The Hand" from JoJo.
Woof!It might be able to do other tricks too.Sit!eehSit."The Hand!"I'm not sure. It was in the temple grounds before anyone noticed.Absurd mannerWaah, it diligently obeys!What's the deal with this little one?Not a stray, huh.Just straight-up say, "Shake"!Oh, a doggy!