Since there's already a family connection between the two, I'd say 100%.

Peter Eng
--
Insert humorous comment here.

Spoilers, maybe, I guess?:

Moko and Kaguya are from one of the Touhou games (Imperishable Night, I think?), and have such a simultaneously epic and silly backstory that I couldn't help being charmed by them. Basically, and this is the really short version if you can believe it, Kaguya is an immortal princess from the moon, who, circa AD 700, found herself in Japan, playing a mean-spirited little game where she demanded that her suitors, of whom there were many, bring her five legendary objects, claiming she would marry whomever accomplished this task. The punch line was that she already had all of those items, meaning the quest was impossible and she had zero intention of marrying any of them. She was evidently just doing it because immortality is boring when you're a spoiled princess with no life skills.

Moko (formally "Mokō", but nowadays she generally doesn't insist on the macron) is the daughter of one of the aforementioned doomed suitors, who is suggested to have been the historical founder of the real-life Fujiwara clan, and when she found out that the game was rigged to be unwinnable, she decided the insult to her family couldn't be allowed to stand, stole some of the moon immortality serum for herself, and embarked on a thousand-year campaign of revenge.

Why she would choose to do this when she and her father don't even seem to have liked each other (it's hinted that she was illegitmate, or at least from a not-particularly-favored concubine—medieval Japanese family politics were super weird), is not entirely clear, but basically she and Kaguya spent the next 1,300 years serially murdering each other, which is a completely pointless exercise since neither of them can die, but I suppose it kept them entertained.

Here we see that after another 400 years they've mellowed a bit. Their relationship as presented in various works ranges from "still seriously propelling that mutual hatred" to, well, more or less what you see here. As each other's only remaining contemporary and with that much continuous history together, they almost always have some kind of attachment, usually weird, and often informed by the largely-consequence-free nature of reciprocal violence. Here they still have a bit of an edge, although it's mostly in jest and largely just a byproduct of the fact that Kaguya is one of Those Women. You know the type. The ones who laugh into the backs of their hands, usually when backlit by a full moon. :)

Meanwhile, Hoshino and Anzu are from Girls und Panzer. Hoshino is a member of the Ōarai Academy Motor Club, which crews the school's Tankery team's Tiger (P), since they are possibly the only people in the Eastern Hemisphere who can keep one of those things working. Anzu is canonically the president of the Student Council, and the one responsible for coercing Miho into captaining the Tankery team. She is calculating and manipulative, but her heart is in the right place.

>DSM Panic! is happening the same school year the Hokago Tea Time kids
>come to town, right? What are the chances of the streams getting
>crossed?

DSMP as it currently stands is taking place in the previous school year (for reference, this story happens about a month before the beginning of The Federation Lives Forever!), but as that school year is nearly over as of this episode, the storyline will continue into the next one—and as has been noted already, since Yukari from the Armorsport Club and Mio from HTT are first cousins, they will almost certainly meet.

--G.
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zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.

Oh yeah, I should probably note the following:

Here in UF, Kaguya and Moko got engaged by accident, when Kaguya decided one day to mock Moko's original motivation for starting their vendetta by offering the five legendary objects as prizes for x number of wins in their endless series of duels to the death.

Eventually, through a combination of dogged determination and a near-complete lack of common sense, Moko accumulated them all.

At which point both of them realized to their belated horror that A Deal's A Deal, After All.

And that is how, after fifteen hundred years, the honor of the Fujiwara clan was (unintentionally) restored. :)

--G.
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Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.

(There's also the interpretation that the whole thing was intended as a polite way of saying "please go away" but it didn't quite work out.)

Kaguya and Mokou's "periodically kill each other" thing is one of the few things in the original canon (of the games I'm familiar with) that I find honestly disturbing, given that I favor a "lighter and softer" interpretation of the franchise. (Both out of preference and because I feel that matches what we're shown in the games themselves better.)

-IA.

(received information not interpretable)

So do I, but I can get Kaguya and Moko to fit into that framework, mainly because since they're both absurdly immortal and they know it, the fact that they constantly kill each other kind of inevitably becomes comical to me, like a Warner Brothers cartoon. They have to know it's never going to accomplish anything. After the first few centuries, it's just a pastime, like tennis or philately. :)

--G.
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Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.

Which semi-demands the question if either of them have ever read Lady Chatterley's Lover

After all this time, Moko's still a bit of a maiden, but Kaguya's never quibbled if it was ribald.

--G.
Moko knows better than to borrow her laptop
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Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.

Thanks for the detailed explanation. I found some of it online but I still wasn't clear on why Moko and Kaguya had this murderous feud going on.

> ... Kaguya ... demanded that her
>suitors, of whom there were many, bring her five legendary objects,
>claiming she would marry whomever accomplished this task. The punch
>line was that she already had all of those items, meaning the
>quest was impossible ...

Oh man, that's just asking for a trickster figure to show up, steal the objects, and then present them back to her with elaborate ceremony. It'd be entirely in character for a Japanese fox spirit.

...
>DSMP as it currently stands is taking place in the previous
>school year (for reference, this story happens about a month before
>the beginning of The Federation Lives Forever!), but as that
>school year is nearly over as of this episode, the storyline will
>continue into the next one—and as has been noted already, since
>Yukari from the Armorsport Club and Mio from HTT are first cousins,
>they will almost certainly meet.

Exxxcellent.

(I completely missed that Yukari and Mio were related, ftr.)

The connection's only hinted at in the stories (Panzermadchen Files 01 and TFLF 20), but at one point or another Gryphon observed that if both of them ended up in UF, they'd pretty much have to be related somehow.

Peter Eng
--
Insert humorous comment here.

I think there's another mention of Mio having a cousin who lives on the Zipang side of the Veil earlier in TFLF, to which the mention in PMF File 01 that Yukari is from some random colony in the back of beyond is a follow-up hint.

--G.
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Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.

Mokou (and Kaguya in canon, but not yet demonstrated here) gained ressurective immortality from the Hourai Elixir. This power comes with the standard Touhou insane-lack-of-limitations. Also in canon, Mokou and Kaguya are "mortal" enemies, though Mokou has some severe tsundere issues regarding Kaguya, and the latter is aware of this and makes use of it.

"This is probably a stupid question, but . . ."

I remember reading somewhere that they can theoretically recover from total body disintegration, which got me to thinking about how the resurrection sequence would be storyboarded in an instance like that. I finally decided that it works like respawning in Minecraft: they wake up wherever they last slept. Which, since in UF they sleep in the same bed, probably means there are occasions when one of them suddenly "returns" from an outing gone wrong while the other is sitting there reading. :)

--G.
"Wuh—!" "Ah, welcome home. Did you fall into the lava again?" "Didn't make it far enough from the bomb." "Idiot."
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Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.

Hmm...

--G.
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Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.

She couldn't figure out a way to do it without getting her good clothes all bloody, although you did just give me the image of her doing a more extensive version of the schtick amid the rubble of one of their epic battles in which she came out on top. "Helloooo Mokoooo!" (bam bam bam) "Wakey wakey!" (tosses corpse in the air, watches it fall to the ground) "Now that is a dead Moko."

Even now that they're happily married, I would be willing to bet they spar to the death occasionally just for old times' sake, although nowadays they have to be careful not to do it where there are bystanders around who might misunderstand. It's such a bother explaining the whole business to the police, you know.

>Is Anzu overly familiar with folks, either always or perhaps just more
>rapidly than is usually considered proper, as a character trait, or is
>this something specific we'll learn more about at some future point?

Nah, that's just how she is, partially because she's just super casual 24/7 and partly because it throws people off. :)

--G.
-><-
Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.

This morning I downloaded a couple of Powerman 5000 albums I had missed in all the excitement, and on the way to intercept a supply drop pick up some groceries, I ran across a song that could, in this context, just as well be subtitled "The Ballad of Moko and Kaguya". I could easily see the former performing it at a school talent show, to the intense bemusement of everyone who doesn't know the backstory and suppressed giggles from those few who.

Life is never what you want
When all your ghosts have gone to haunt
And there's an echo here tonight
You're not alone and it's all right
But hold on

I want to kill you
I want to kill you
I want to kill you
I want to kill you
And you want to kill me too

I want to kill you
I want to kill you
I want to kill you
And you want to kill me too

Wrap your hands around my neck
It's what I need and should expect
Don't hate the player, hate the game
At least we know we feel the same
So hold on

I want to kill you
I want to kill you
I want to kill you (I want to kill you)
I want to kill you
And you want to kill me too

Life is never what you want
When all your ghosts have gone to haunt
And there's an echo here tonight
You're not alone and it's all right
But hold on
Hold on

I want to kill you
I want to kill you
I want to kill you
I want to kill you
And you want to kill me too

I want to kill you (I want to kill you)
I want to kill you (I want to kill you)
I want to kill you (I want to kill you)
And you want to kill me too
I want to kill you (I want to kill you)
I want to kill you (I want to kill you)
I want to kill you (I want to kill you)
I want to kill you (I want to kill you)
And you want to kill me too

Life is never what you want
—Powerman 5000
"I Want to Kill You"
The Builders of the Future (2014)

--G.
-><-
Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.

"Does this mean that Professor Fujiwara has priority when it comes to Weird Stuff involving these guys? Because I'm happy to have that taken off my plate."

Peter Eng
--
Insert humorous comment here.

I adjusted one of Hoshino's lines so she wasn't repeating herself, and added a link to the song Moko is whistling at the end.

--G.
-><-
Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.

Also, does Kaguya actually come from the moon in UF? And if so, is it possible that the agreement to not settle the near side of the noon (the one Corwin mentioned in Roses in Springtime) was actually a secret treaty with the people of the moon who banished Kaguya? Or at least that they had some influence over the outcome?

I'm not sure if her place of origin is literally the Moon, to the extent that the Apollo astronauts could have made contact if they landed in the right place, or a Dìqiú-style spirit realm/dreamworld kind of place that has the Moon as its focal point in this reality. Weirdly enough, the latter would actually make more sense, story-wise.

>And if so, is it
>possible that the agreement to not settle the near side of the noon
>(the one Corwin mentioned in Roses in Springtime) was actually
>a secret treaty with the people of the moon who banished Kaguya? Or at
>least that they had some influence over the outcome?

Even if the above is true, that's probably still the case. Even if the Lunarians don't literally live on the nothing-here-but-dust-and-vacuum Moon, if it's the anchor of their spirit realm in this world, they're going to be particular about what happens to it.

--G.
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Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.