Roscat

"Here we go again... guess I'll be needing this again."
Pick up the sphere and stick it in my coat pocket alongside the Sonic Screwdriver, then walk over to Peri.
"Hey, are you... uh..."

"Alright, before you freak out I should probably explain what just happened..."
"What are you talking about, for that matter who are you, and what is this place?" Peri looks over to her shoulder and smooths some ruffled feathers under her coat down as if there's nothing unusual about her suddenly having them.
<i>Huh. I wonder...</i>
"Don't worry, I'll get to that in a minute. First I just need to ask you some background questions. Name?"
"Lady Peri of House Gren."
"Species?"
"Birdfolk, I should think that would be obvious."
"Look, explaining why these questions are important would take too long right now, everything will make sense... sort of... in a bit. Known living family?"
"Lord Robert Gren, or at least I hope he's alive."
"Last thing you can remember?"
"I was in the Yggdrasil Labyrinth when I began feeling dizzy. Lily - she's a member of my guild, a delightful young Forest Folk girl - asked me if I was well, but before I could answer I passed out only to awaken here."
"So nothing about a crystal, a town called Terran, or the Eidolon Ifrit sounds familiar?"
"I'm afraid I don't even know what an Eidolon is."
"Huh. Alright, I think I've got all I need to know to understand what's going on. Now let's see, where do I start..."
(One explanation later)
"...And then my last companion inexplicably turned into you. Given that you have your own gear and memories instead of hers though this probably isn't a normal regeneration, although just what the hell is is then is beyond me."
"And you expect me to believe that? What you're suggesting is simply preposterous!"
Suddenly, a screen popped up. Not on the TARDIS console or anything, just floating in the air. Footage of Sylvia's regeneration into Peri played out on the screen, much to the surprise of both of its viewers.
"Huh, well that's convenient. Still don't believe me?"
"I... well, that's... very well, arguing about something I've seen with my eyes would be foolish. Now what?"
"Now, we go see where we landed."
Leave the TARDIS, taking the keys and locking up as we go.

"Sorry about that, I can't always control where this thing is gonna land."
Check how much money I have, then see if there's a buckler I can afford. If I don't have any money myself then Peri will pay for something since she's rich, she'll write them a check.

"We'll be back some time soon, we're gonna help deal with that dragon."
"We are?"
"You got any better ideas?"
Exit the shop and go see what all the commotion is about.

Bring up the UI. I want to know everything I can about this angel including exactly what's wrong with her. Meanwhile Peri will ask the officer and the old man what's going on here.

"Excuse me miss, can I speak to you in private about something?"
Peri will continue trying to get the detective's attention to find out what it is the dragon did.

"Maybe it'll be easier if I show you."
Bring up the UI displaying the data for a brick in a nearby building.
"So everything in this world has these lists of data to it. Objects..."
Swap to the data of a blade of grass growing out of the sidewalk.
"Plants..."
Switch again, this time to a person walking by.
"Even people."
Back to the brick.
"It's these lists of data that make everything look and behave the way they're supposed to, and if someone has the power to change them..."
Turn the brick green, then change it back to the way it was.
"It in turn changes what they belong to. As for why this is important, when you first showed up about a minute ago I had the feeling that something wasn't quite right, so I took a look at your data and found something pretty concerning."
Show her her own data.
"You see, I'm not the only one that can change this data, and looking at this it appears someone else has heavily tampered with your data. Now, if you want I can try to reset it back to your condition before they started messing with it, but I need your permission to do so. It's kind of a weird quirk to these powers, while objects and non-sentient life can freely be changed people can't be edited unless they're either willing or incapacitated. Of course if you don't want me to and you're happier like this then that's fine too, although I'd like to suggest you at least consider letting me try to help you."
---
"You're arresting him simply for cutting in line? Doesn't that seem a touch excessive? It feels like this could be easily enough resolved by having him return to the back of the line and wait his turn."