"It informs one whether what is being communicated is true according to the speaker's knowledge. It does not compel either truth or speech."

"Alright. You have my permission."

"Would you like to also see it? It won't convey as detailed readings as it will to me, but if it might be reassuring to an extend regardless."

"Sure. That'd certainly be interesting."

She casts a truth spell with an additional simple visual feedback. Explains it briefly - this color is truth, this color is a lie, this color is the collapsed category of everything else for which the more detailed readings will be nonvisual. 

Indicates readiness.

She listens in interest, then: "Alright. The current situation is... Complex. Some background: our society is split into nobles, samurai, shinobi, and civilians - mostly peasants. Samurai and shinobi are the ones with the 'powers,' though we have different approaches, and some civilian sages have powers, too. About ten years ago, someone started trapping all of the tailed beasts - a sort of incredibly powerful monster - and recruiting clanless shinobi. Two years ago, they succeeded in combining the tailed beasts into a powerful weapon. They targeted anyone who opposed them - which was approaching the entire world - and leveled several cities. After three days of fighting, the weapon transformed into the God Tree, and an illusion fell over the world, trapping most of those still living. Zetsu, who had been helping them fight the world, betrayed his allies, and tricked them into summoning Kaguya.

"My sister, brother, and I were among the very few not trapped by the illusion. My sister and I hid. My brother didn't, and died for his efforts. We started breaking people out of the illusion once Kaguya's attention turned elsewhere, and started an underground resistance. We eventually had a... philosophical disagreement, and split up. We've had very little luck fighting Kaguya - fighting her up-close is a crapshoot, and we don't have much good for ranged. Our main hope is to seal her, or hold out long enough - my nephew and one other boy are sort of destined to have a chance at beating her, but they're currently small children. And I'd rather not rely on them.

"Quite frankly, our default assumption is that everyone who isn't on Kaguya's side is our ally. Even my sister, despite disagreements. Immediately, I desire that you not die or be trapped, because no one deserves that. It'd be great if you and your strange magic could help us, but that's not required. 

"Our powers system works on manipulating chakra - mostly our own - to have effects on ourselves or the world. There's... An awful lot that's possible, but most people stop at enhancing themselves physically, manipulating the elements, and placing or breaking illusions. The Uzumaki clan have also been insisting we all learn more sealing - it's math-based, I'm not very good at it, but you can do everything from sealing things in a scroll to teleportation with it. The long-distance communication is an ability of the Yamanaka clan - they have mind-affecting techniques, that with the right tools and preparation can be generalized into telepathy. The truth-detection is mostly a Mariko thing, she can sense chakra fairly finely and tell from changes when someone's lying or telling the truth."

"If you want to learn how to use chakra, we're currently teaching the children, you could sit in on their classes."

"My condolences. And thank you.

Is the original set of enemies still around? Do you know what their original goal was?

What is 'sort of destined'?

Mind affecting techniques?" (She has mind wards up already, of course, but detail is often very helpful, in addition to interesting.)

"I see. I would certainly love to sit in and learn more, though I would wish to be careful about attempting."

"Thank you. And you're welcome."

"They're not still around, no. We're not sure what they were aiming for."

"The boys are - reincarnations of Kaguya's grandchildren. We think. Supposedly, they fought over their father's inheritance, kicking off a thousand-year-long series of wars, and are reincarnated into their own lines where each time they choose to either continue the war or end it."

"I don't know the details on the Yamanaka, mostly only how to fight them - their main offensive technique is possession, though they can also do mind-reading if they have someone captured."

"The techniques aren't dangerous to learn, as long as you don't overdo it, and 'how not to overdo it' is part of the lesson."

"I see.

Is reincarnation common, in this world? Is Kaguya also one?

Ah, are they your enemies? And I would be interested in details, if they are available. Do you have protection methods?

I image that information such as 'not dangerous' has generally been obtained from effects on people of this dimension."

"Reincarnation's fairly common, but it's usually harder to identify. Kaguya isn't one; she was sealed away last time, and has survived the intervening years. We're not sure if she would reincarnate, she's not native to this world."

"The Yamanaka were, along with just about everyone else. Only good thing Kaguya's done is given us all a reason to stop fighting... We don't have many protection methods beyond 'don't get caught,' though that doesn't mean they don't exist."

"Good point."

"I don't suppose there are any around to experiment with?

Ah, you have had interworld travelers before?"

She is interested in more information about reincarnation. 

(She'll ask questions about what's already been said, now and then, rephrases and angles and various other general truth spell practices. Assuming no one's trying to trick her it won't be more than confirmation.)

"The Yamanaka? I can introduce you to one, you'll have to ask them."

"Only Kaguya, that we know of for sure. Possibly some of her clan. She came here nearly a thousand years ago, if the records are accurate."

"I see."

"Do you have any other questions?"

"Yes, but I'm a researcher, I will have questions for quite a long time. And I do not wish to keep you from work you must have. What is living here imagined to look like for me? Do you have questions for me? Is there reading material I can access that might let me receive information without needing to take quite so much of your time?"

"I actually have relatively little work, I mostly sit around on-call for emergencies. Though I've somehow ended up judging disputes, too..."

"I'd imagine that you'd spend most of your time in this complex, probably learning our language and techniques. There's plenty of chores to help with, too, if you want something to do. You might also want to talk to someone - like Mariko or Tetsuma, our teacher - to figure out if there's any way your world's magic and ours can interact interestingly. There's... Some reading material, not much. It's not like anyone's sat down to write a singular accurate history, most shinobi history's oral, and we didn't really go through the civilian areas for books and scrolls. Though I think Tetsuma's been writing some things down."

"Questions for you... What's your world like? Is it peaceful?"

"Ah, I see. In that case I will continue to enjoy talking to those who might have the time for it. 

Well, we don't have the problem you do. Last more-or-less world-spanning war was a few decades before I was born. There've been some smaller ones since, some in my lifetime. Most places are generally peaceful, in the not-war sense. Vary a bit in other senses."

"That sounds nice. Even before Kaguya, things were pretty bad here, children fighting and dying in wars, disease everywhere... Most people who weren't the nobility didn't live much past forty. Maybe your world can help set an example for ours when it's time to rebuild. What about the place you're from?"

"Condolences. 

Your magic does not sufficiently help against the diseases in question? Or is it an organizational problem?

I'm from a few places. Not very fond of the one I was born in. Reyna - that's where I was when I showed up here - 's a - good example, in my opinion. Schools, science, government." Generally nice prison accommodations. She does not share that part, obviously.

"Well, very few people know the magic, and of those even fewer are trained as medics in the first place, and it's very specialized towards healing acute injuries. Currently the total of our medical knowledge is me and Tetsuma, and neither of us is a specialist."

"We don't really have schools, either. There were bureaucratic academies for the elite, but that's about it."

"Ah.

I'm not fully specialized in it, but I have both skills and experience at healing, should this be needed.

How many people do you have?" 

"Can you teach others?"

"We have a few hundred by now, I think Emi has slightly lower numbers. Mostly people who weren't caught in the initial illusion and managed to hide. There's also scattered other groups, we think."

"I'm mostly versed in the magic sort, which I imagine they couldn't do, but I can see if there's something non-magical I might know that you do not. I have thorough biological and magio-biological knowledge, which might be helpful, but I do not know how similar in those respects you might be."

Is anyone currently in need?"

"I might want to sit down and talk biology with you at some point. But no one's currently in need. Thankfully we've avoided disease so far..."

"I would be very interested.

I can attempt some wards against disease, if that is a concern, though it would probably be more effective with more knowledge."