"I-I am! I'm Asriel Dreemur... and you are too, aren't you?" If he wasn't aware of the capabilities of this castle, he'd honestly be doing the same thing. This Asriel tilts his head a tiny bit though, a little bit confused.

"This place is... it's different, but it's nice here. It's an island floating above the clouds! There's a lot of humans and monsters here."