Charlie doesn't have the most experience with portals. It's not exactly her preferred method of travel and, like, okay, so she hasn't practiced them as much as she might. She likes to walk! She likes to see the sights! She's... look she's working on her magic, okay? It's a skill you build. She's good at summoning objects! That's a thing she can do!
Look the point is she's never been yoinked through a portal like that before! It's a little disorienting. A little exciting! New experiences. Also a little, well, concerning, because uh where the heck is she?
Like, it's not an unfamiliar aesthetic. She's the Princess of Hell. So y'know, curtains, candles, drapes, dark room, weird runes everywhere... she gets it. She's in on the vibes. She's pretty sure there's a little diner right down the 666 that's decorated just like this and... Oh! And there's someone here.
"Oh hi!" she chirps, brightly. "Sorry to just, er, pop in, but uh..." Blink. Peer. ...Wait. ...GASP. "Oh my gosh are you a human?" Is that a rude question? That might be a rude question. But she's excited! "I've never met a human before! Well not when they're still... human, anyway. Not a living human! Hi! Oh, oh geez, manners, um, I'm Charlie. Did you call me here?"
She's starting to put the pieces together now. She's heard of this happening to other demons sometimes. Sometimes particularly ambitious and daring humans can pull demons to the Mortal Realm for a little while, to... help them with stuff! Or something to that effect!
"Oh wow you must be really good at this," she compliments, looking around the room with an expression of excited if bemused curiosity.
Let's be honest this is probably not at all what you were expecting to get today, even if you were aiming for Hellborn royalty.