[He twitches when he's nudged. Clearly he's not dead, at least? Means she doesn't need to call the cops. After a moment or two, he bends his elbows and scoots his hands closer so he can lift himself up off the ground a bit. Then he shakes himself like a dog.]

Huh?

[He looks around, slightly alarmed.]

I'm... back? I'm back. Whew, I thought I was dead for a minute.

[He gets up and brushes himself off.]

My apologies if I scared you. I was being chased by some sort of... giant angry bird. It would not leave me alone no matter how fast or how far I ran, so I thought I could lose it if I ran back to Kaisou...

[The girl looks familiar, but he's only now realizing that the normies might not even be aware of the gate he just came through.]