[Hohoho~ humans are so cute when they're doing the creepy bit. Botan merely nods and directs the camera down to the aforementioned tiny ghost, who looks surprised at the sudden attention.]

It's okay, Tomoe-chan, I just want to show you off to the nice lady. Yes, they're Pokemon that migrated over here from Kalos--while I agree that Yamask's origin is terrible, Phantump are all stated to be children that got lost in the woods.

[And she pulls the camera up to show her background, where there are upwards of nearly twenty Phantump milling about under the watchful eye of a Gengar.]

I've been taking care of them so they're not lonely.