Good question! Maybe the girl sitting at the bar with an enormous chocolate milkshake knows the answer.

Right. She walks up and says, "Er, hello. Have I hit my head a bit too hard recently, or has the supply room door turned into a portal to a bar, of all things?"

"I can't tell you if you've hit your head, but if you have that's not why you're here," she says. "This place just does that."

"...It probably says something about my life that this isn't even the strangest thing I've ever stumbled on. And geez this place is loud, magically speaking anyway."

"Magic has loudness?"

"To me anyway. My special is seeing it, or hearing, or smelling, whatever the synesthesia decides. And then imitating it. But this place is just... Incomprehensible."

"Huh. Well, that doesn't surprise me hugely. Anyway, what's your name? I'm Anna."

"Grendyne, call me Gren." She holds her hand out for a shake. Her hand and arm are well muscled and, not covered in scars, exactly, but there are several. This may be a good time to mention the vaguely military-looking uniform.

"Nice to meet you." Anna shakes Gren's hand. She doesn't have scars on her arm, but she does have what looks like a thorny white vine wrapped around it.

That vine is very magically interesting, too.

She turns to the bar and says, "Nice to meet you, too. How much for something with lots of caffeine?"

The bar indicates that the first drink is free.

Anna says, "So, imitating magic?"

"Yep. Some of it's easier than others - the further away from the usual sort of thing other Witches' magic does, the harder it is... Doesn't that vine hurt? It smells like pain."

"Yeah, it does, I'm just used to it."

"...Yeah. You get used to it."

"I wouldn't recommend the flowers to anybody who's not really used to it, though. Especially not this one." She pats the vine affectionately. "It's the worst."

"Can you make more?"

"Yeah. Why, you want one?"

"Definitely. Pain doesn't mean much after two and a half years of fighting Neuroi, shorting out on mana whenever we have a close fight, and they seem like they'd be a huge help."

"What's a Neuroi?"

The white vine sprouts a tendril that buds a tiny black flower, which rapidly opens into a soft-petaled black rose. More vines snake out of Anna's sleeve to open new flowers beside that one: a red flower on a black stem, a blue flower on a purple stem, a pink flower on a yellow stem.

...It's sort of gruesomely beautiful. She gets distracted from the question, watching/listening to the magic unfold.

"Ah, right, Neuroi... Are giant flying monsters that like to blow everything up." She produces a to-scale still illusion of a team of Witches fighting a bus-sized Neuroi. "That's a little one."

Anna squints at this picture and says, "Not very little, is it." She cuts four long-stemmed roses. "Well, here. Careful of the thorns. If they break skin, the flower goes for you, and you'll wreck the hell out of your clothes."

"No, it's not. We've lost most of eastern Europa, by now. Greece was gone five years ago. Russia's on the brink. Thank you." She levitates the roses rather than actually touching them, and scrutinizes each in turn, both physically and magically.

The black-petaled rose with the white stem and black-tipped white thorns looks tricky and powerful. It hurts more than the rest, but grants flight as a basic power. Its magical focuses are object conjuration and some other things that don't come clear immediately.

The red-petaled rose with the black stem and red-tipped black thorns seems to draw part of its magic from each of the other flowers. If that's true, it seems like there's at least one more kind of flower out there that isn't represented in this bunch of four. It draws blood when it unites with someone, and makes them faster and more agile as a basic power. Its first magical focus is cutting (which is what Anna used to cut those stems), and the others are healing (shared with the pink/yellow rose), altering magic (shared with the black/white rose), telekinesis (shared with the blue/purple rose), and light (not represented).

The blue-petaled rose with the purple stem and blue-tipped purple thorns is themed around physical force. It leaves bruises when it unites with someone, and enhances strength as a basic power. Its first magical focus is telekinesis, the one it shares with the red/black rose.

The pink-petaled rose with the yellow stem and pink-tipped yellow thorns is harder to pin down thematically. Its basic power is grace, and it unites without drawing blood. Its first magical focus is healing, shared with the red/black rose.

Anna watches the floating flowers curiously.

"These seem... Tricky. I don't know if you want to go home soon or what. Do you mind if I go change in the restroom and practice and get some advice from you?"

"Nah, go ahead, I was planning to stay a while."