Through hidden informants I have learned that the play "The Entire and Complete History of Demonkind" has a runtime of several hours and three intermissions during which the audience is asked (forced) to give (positive) feedback. 

While some of the play is clearly built on deep and even hidden truths, much of it is symbolic and/or terrible rhyming verse. 

As the play progresses things become increasingly skewed towards the viewpoint of the Demon Master Sangui, and the final act entirely revolves around her gathering all Demons and Humanity to her, finding a way to merge with them all as a kind of liquid, and then ushering a new golden age with her as all things.

Truly horrifying and hopefully entirely delusional.

...There was a bit with a comical Angel Dog that I could not help but laugh at, I am sorry to say.

-Notation on Demon Master Activities by the Demon Master Dzu

Sooo... he's gone! Is that bad? Does it matter?

-Ms. Ferret

It does not matter any longer. As long as we keep him away from Gerda, he can do no harm. Even if they come into contact with one another, we have solutions.

-The High Angel

Huh. You sure he can't do anything?

-Ms. Ferret

We allowed him leniency out of respect, and that leniency was rejected. We will not be so respectful when we next encounter Mr. Crow.

-The High Angel

Although extremely hard to procure, it has been shown that young Demons are far more Magica than they are flesh.

Imagine a delicate and ripe fruit. Although it gives the appearance of solidity, if you squeeze it will yield completely.

As a Demon ages it is able to compact and refine its own energy into an increasingly dense structure. 

Still, even solidified Magica is still Magica, and in turn it is weak to disruption by Magica. 

The purity of Magica needed does increase in relation to the refinement of the Demonic form.

-Notes on "Demonic Flesh; Methods for Efficient Vivisection" by the Head Scientist Priest 

See the thing is, Kassandra should have never opened her mouth. I think then... yes. Then she would have gotten what she wanted, perhaps.

-The Snow Queen

(several minutes of laughter follow the above statement)

Pleasure and pain can only be measured relative to your own reality.

For those that have suffered immensely, a great pain in others will be dismissed as insignificant.

For one that has never encountered tragedy then even a small upset can be insurmountable.

To understand what another is experiencing, we must see the moment through the light of their past.

The same event encountered by ten different people will have ten different outcomes, not all measurable until much later.

Reality must remain subjective, lest it be taken from you.

-Writings by the demon Philospher Fizzlestatros (widely derided as a fool)

What do you think about the "God" that used to run things, Kay?

-The Snow Queen

... I don't really think much about her? The stories never really made sense. She couldn't have made the world only several hundred years ago. It is possible she was a massively powerful magica user though!

-Kay

She did "make" this world, Kay. And magica is a gift left behind by her. But you are right, she was no true God.

-The Snow Queen

Uhh. Wait she was real? Huh! Wow. Does that mean-

-Kay

To be a TRUE God you must be more than a human. You must abandon all those weaknesses people hold dear. You must know the Future, and it must bend to YOU.

-The Snow Queen

Uhm. I don't know if that's strictly true for all Gods, I've read about a few that were pretty flawed, but I see what you're saying...?

-Kay

Further testing shows that patient Gerda cannot be equipped with the Halo. Multiple energies are active in her and will lash out at any attempt to insert the spinal connection core. Recommend giving her no authority beyond that of a blade.

Patient Vau has shown immense progress with no more erratic actions. As the Halo is installed it cannot be removed, but patient Vau may be given increased clearance and responsiblities. 

Patient Iota is impeccable in her following of orders and behavior, but is disappointing in her energy accumulation. She has now fallen behind the EVs, although her technique is still better.

Patient Mu has increased greatly in both energy and technique, but must be used soon or lost. Temporary measures have been taken to gain more time, but these measures have capped her energy output.

-Private Medical Update, sent to The High Angel

Do you think there are Demons that live in the human world, alongside humans? More or less getting along?

-Cezar

Uhh. No? How would that work.

-Scrambles

Well I guess you'd eat a few here or there, right? But mostly you wouldn't! And then you could have like, human friends you would DEFINITELY not eat! That would be fine, right?

-Cezar

... From what I understand about humans, they have a kind of "zero eating humans" rule in place.

-Scrambles

What if it was only bad guys or something?

-Cezar

Yeah I think they don't even eat their enemies. Sorry buddy.

-Scrambles

The Unsanctified sleep deeply.

Rho, Pi, Xi, and Lambda are not saints, and they are not demons, and they are not humans.

Their bodies have continued to change in ways unlike the Sainted. Perhaps because a human consciousness is no longer guiding the energies within them.

I hope that we do not need to use them, but they will be if the cause is great.

It is interesting that all four of them have lost their eyes in the physical shifts. Inexplicable.

-Notes on the Saintification Process by the Head Scientist Priest

Sometimes it's like my Halo is talking to me.

-Empty Vessel 1

Mine just drools. I get nervous that it's going to bang on a door frame and I'll die.

-Empty Vessel 2

No they are very tough! As tough as us, I think. But it does feel weird to be wearing "yourself" outside of yourself. Vulnerable.

-Empty Vessel 1

It's like the Angels wanted to give us a weak spot or something! Hahaha!

-Empty Vessel 2

Hahahahahaha!!

-Empty Vessel 1

The High Angel has requested that all Walled Cities make every effort to get not only criminals and "those who have sinned", but ordinary Citizens, to commit to the Angelic Sin Removal Ritual.

To facilitate this, we are using high profile Citizens to go City to City and promote the efficacy of the ritual, and showcase the amazing effects.

See if we can put together some kind of fair or parade, that tends to bring people out that otherwise might not partake. 

He says we are in the final weeks of the ritual, so we must move quickly on this.

-Meeting notes from the Council of Edges on "Further Inroads With Angels"

Sometimes I like to give it a snack.

-Priest 1

What? The Demonic Flesh amalgam??

-Priest 2

Yeah, I mean, it's always writhing and in distress! I figure it might appreciate it.

-Priest 1

Do NOT feed the APOCOLYPTIC end times BEAST!!

-Priest 2

Hey we don't have to be mean...

-Priest 1

... I also sometimes give it treats.

-Priest 3

They are the stories we are told as children.

So beyond belief that that they cause only a thrill, a delight.

Until you hear the tales that are not fiction. 

Until the day comes that you see one truly, and it sees you.

And unlike an animal, or a monster, it knows you.

It has heard stories of you, as a child.

And those stories caused it to thrill, to delight.

To Hunger.

-Reflections on Demons, by an unknown poet

I think my name can confuse people, although I obviously smash, I mainly employ nearly invisibly thin layers of demonic energy. When I send these out at high speeds the edge slices through my enemies on contact. Sometimes the slices are so precise I have to "smash" them for my opponent's body to even realize it has been cut! Still, attaining that level of precision is not easy, and every day I practice mindful energy control to maintain cohesive ability.

-Smashmaster

GHHHGHHHHHGH!! GKKKGK!!!!! ZZZCHHHHKK. ZHHHCKKKKKKKKK!!! LRGGHHHH!!! Ghrnt.

-Gigaplex

The flame that burns brightest is the one that is most beautiful.

The fact that it will go out so shortly only makes us appreciate the brilliance all the more.

When I look out across humanity, it is a sea of shining stars.

Sublime.

-Writings by the High Angel

Jahi Jahi did you see the little moving images Cez can make now? Aren't they SO cool?

-Cezar

I guess if Cez works on them they can eventually be used the same way Vapula uses his energy constructs, to confuse and distract enemies and allow for a hidden attack. I doubt Cez will be able to infuse them with enough energy for them to be able to do real damage, but pinpoint energy use can be surprisingly potent.

-Jahi

Uhhh yeah that too! I was talking about the fact that the images can make little farting noises and also Cez makes HILARIOUS tiny versions of all of us!

-Cezar

I see...

-Jahi

I swear I can almost smell the little farts! Incredible stuff. Really incredible!

-Cezar

How can that be? That the rising and falling sound, the rhythmic cadence can evoke in man a synchronicity of feeling?

Although that realm is no longer available to me, I can press up against the glass and feel the vibrations pass through.

As poetry and music are made only of mundane words, is it not possible to construct a self that resonates with the world out of non reactive parts?

Let me be shaken once, even to dust.

-Writings of Saint Vau, in his private journal

Hm? What's outside of here? Oh that's the like, Human World. It's pretty cool, I'll definitely take you one day.

-Cezar

Ouxside that?

-Cez

Uh. Oh! Um. Hm. Wait I read a book on this once. Uhhh... lots of nothing. I think. But with stuff floating in the nothing. But the stuff is all really boring and far away.

-Cezar

Go? See? Pleaxe?

-Cez

Hm! I guess I never thought to! Sure! How far away can the moon be, really?

-Cezar

Although I have visited the surface I didn't dwell on the missed opportunities, at the time. 

I have always viewed myself as an "underachiever". Spending time with Cezar, lazing around, this felt very satisfying.

But something new stirs in me. Perhaps it is the ability to look in on the Human world at will now, piercing easily between our realm and theirs.

Quantifying each city in terms of Demonic Power Potential (DPP) is almost staggering to think about. Of course no individual Demon, aside from the Masters, could ingest all that power without hundreds of years to compress and utilize it, the fact that it is all just THERE is something I cannot stop thinking about. 

Imagine being free in that place. Eating, growing, utilizing, eating again. Using that power to do more, BE more.

Why ARE we stuck in this bubble of nothingness? A prison we have lived in so long we have forgot that the bars are not just decoration, but an insult to all we are.

I am no longer content. I am not unhappy with this change.

-Scrambles scientific notation journal

When you first begin to read a book, do you know how things will end up?

-The Snow Queen

I mean... you can guess, but no, usually not?

-Kay

But if you skip to the last page, then things are much clearer.

-The Snow Queen

Ye....sss.... yes. Although you might not have the necessary context to-

-Kay

Do you think the characters would act differently in the early chapters, if you could show them that last page?

-The Snow Queen

... Yes? No? Is this a metaphor?

-Kay

But no matter what they did... it would still be the last page...

-The Snow Queen