"Only on my dad's side." Maybe cracking jokes right off the bat wasn't the best way to welcome confused newbies to Lawrence, but it was kind of a reflex for Rose. She made jokes, often at inappropriate times, whether she was trying to put herself at ease or others. At least in this situation, she recognized that she should probably offer something resembling an explanation. After all, she hadn't run into a lot of people from realities where vampires have kids was actually a thing.
"I'm a dhampir," she offered after a beat. "Half-human, half-vampire. Which means none of the icky blood drinking, but I get some of the perks, like better senses and a natural ability to kick ass." It was a pretty simplistic explanation, but she didn't really feel like going into the whole strigoi versus moroi thing at the moment. The bad vampires might be running rampant in her own world, but here it was mainly the native vamps you had to worry about and Rose was more than prepared to take on anything they might run into. She hoped.
"And this," she gestured at the space around them, "is Lawrence, Kansas. If you don't recognize it, you're probably from a different reality. Most people who show up here are. This isn't my world, either, even if they're pretty similar. We were all basically kidnapped by a thing they call the Seal. There's a whole weird and long explanation about what that is, but the short version is that we're stuck here unless it decides to send us back, so, uh, welcome to your new home."