There's motion at the edges, and soon enough a group of people clad in dark furs - though not as thick as one would expect given the temperature - are coming out to meet them. 

"Karin and I will want some kind of cold weather gear; we can keep ourselves warm for a while with chakra, but it's tiring," Sasuke comments.

"Sure, do you like the local styles or what?"

"Local styles are designed for local needs, yeah."

Now they are both in snazzy coats.

And they go out to meet the locals.

Sasuke introduces himself, clarifies he's escaped from Orochimaru, and that he's not a representative of the Leaf, and that yes he'd like to talk to their Queen.

Some conferring later, they're told to follow the locals back to the city.

Cam, who rather than be without free wing movement has opted to warm himself with warm air, follows along.

The city itself is a lot warmer than the ice sheets. There's a noticeable line where the air is faintly bluer, and where the snow cuts into green ground-cover. It's still cool, so Sasuke and Karin just open their coats. The buildings are designed so that if the climate control cut off they could stay warm inside, but with the windows and doors all open don't get too hot in the warmer temperatures.

They're told to wait in an official-looking building; apparently, the Queen is coming to them. The room they're led to is comfortable, at least.

Cam sits and starts teaching his computer the commoner components of local characters so he can maybe write a program later to read the language corpus and turn it into a typeface.

The Queen is there quite quickly. She smiles slightly when she sees them, and introduces herself:

"I'm Kazahana Emi, Queen of Snow. I recognize Uchiha Sasuke; who might you two be?"

"My name is Cam, it's nice to meet you."

"I'm Karin. It's an honor."

"The pleasure is mine. To what do I owe this visit?"

"I escaped Orochimaru, with their help, but I'm not ready to return to the Leaf. We have a proposal for you, though."

"I'm listening."

"I am from another universe with more advanced technology, and also I can create arbitrary material objects."

"Do you need to know what you're making? And what do you want from us, I suppose in exchange?"

"I need to know approximately if I'm copying something, and more exactly if I'm inventing something. Title and author is about right for a book. I'm hoping to call the Land of Snow home base for a while due to the low local concentration of stupid ninja fights, which seem like they'll be a nuisance on any project of generic world-improvement, but you can imagine that someone who can make arbitrary material objects isn't hurting for trade goods, you don't need to worry about that except insofar as I'll need permission to put stuff somewhere and I might want to sell things so we can purchase local labor and suchlike."

"If you start upsetting our neighbors enough they decide to bother crossing the ice to attack us, I'll want compensation of some sort, but I'm fine giving you permission to build in an uninhabited area, and to operate in my country, in exchange for some goods we have more trouble procuring here. I can direct local experts your way, too. What do you mean by 'world-improvement?'"

"I've been through medical school; if any of your diseases are like ones I know I might be able to work on that, though I don't know how much disease burden the average person on this planet operates under. I know things about economics and engineering and information technology. The shuttle I came in can go to space. There's also more of my species and two other also-useful magical species where I came from, though I'm currently uncertain it'll be feasible to get lots of them. If there's cool lost ninja techniques that are more useful than they are inciting I can get all the written material that was ever produced on those. Modulo stupid ninja fights there's lots of room to make everybody's life better."

"There's more lost techniques than modern techniques. Shinobi frequently fail to pass things on. The most useful would probably be anything from the time of the Sage of Six Paths, assuming he actually existed, or anything that was in official use during the imperial period."

"My nation could use disease prevention; malnutrition is a bigger problem, though. Our major bottlenecks are on food production, and some rare materials for our heat-generating machines, which would solve the food problem."

"I can solve that problem both directly and via rare materials!" says Cam.

"The heat machines are more directly useful, but pound-for-pound the materials will let us make more total. Depends on if there's a mass limit here."

"There isn't. I mean, there is but it's not something you're going to notice on the scale of a few warehouses, it'll probably take longer to confirm all the descriptions of what you want and how you want it packaged and where I should put it than for me to make it."

"I suspect this will be a very productive partnership, then. Do you have a timeline on your plans for world improvement?"