A/N: Sorry to disappoint you two, Darkoreahhhh & Primeoyo. But this will end without bloodshed.

[Made in the Last Days of December]

Ezra's POV...

Great... Winter has come early and most of the automated defenses are frozen shut... Worse, we could only prepare our Troops. Not anything else... This means the Northern Parlament is coming...

A Stadium with only a Piano... I checked the day... It's now December... 24... It's nighttime... I could only wait to watch around in my Commander's Room, but the Northern Parlament Shipgirls is delayed, thanks to the Smart Naval Mines that Kevin and Michael have placed...

Ezra: *Sighs* At least tomorrow will be cool enough... A fucking snowstorm just happened today...

Richelieu: I know... At least we have our Winter Clothing...

Jean Bart: Say... Why are Michael and Richard outside, what the hell are they doing?

Ezra: They're doing maintinance along with some of the Combat Engineers... thank god we deployed light sticks so that they won't get lost in the Snowstorm and Freeze to Death...

Jean Bart: Ugh... Can't argue with that...

Meanwhile...

Both, Michael and Richard, are in Military Arctic Clothing, Heat packs in their clothes to keep them warm, respirators to prevent their nose and mouth from freezing and goggles to prevent their eyes from freezing... Including the Engineers as they're tasked to repair and defrost the Automatic Defensive Structures.

They're both not on their Exo-Suit as theirs don't work in Extremely Cold Environments, not even Ezra's.

Michael: That means the Northern Parlament is Coming... Those Communists are no better than the Fascists...

Richard: Both an Anti Communist and Anti Nazi... What are your views?

Michael: I prefer the Federal Republic of Germany instead the Democratic Republic of Germany or even the Reich. Not a fan of Kaiser either, but I still support the European Union.

Richard: Wow... That's...

Michael: I just don't want to work with an Emperor or a Chairman or even a Fuhrer. I work to keep people free.

Richard: Always looking after the Citizens. Kind-hearted of you.

Michael: Just doing my job.

They followed the light sticks so as to not get lost... And they arrived at another SAM Site, and the Engineers got to work, while Michael and Richard guards them...

Richard: Say...

Michael: Ja?

Richard: Why's there a piano at the Stadium?

Michael: Who knows? Might be nothing...

Vasilli: Then why do I have a Good Feeling about it...?

Michael: ... Hard to say...

After the Defenses are repaired... They found out...

Richard: Fuck... The Batteries are filled with snow...

Vasilli: That means we'll have to shut down our defenses... If they melt...

Richard: It'll likely explode...

Michael could only sigh and report back to Ezra.

Michael: *Radio* No good. The Batteries are snowed. If they melt by the batteries' heat we'll have an explosion.

Ezra: *Radio* Great... Change plans, and replace the batteries. We can't have a chain reaction of exploding Batteries. ..

Michael: *Radio* Alright. We'll try...

Despite the Snowstorm, they managed to remove the batteries... At the cost of their defenses goes down... They prey for a miracle that the SIREN Kevin won't come after them...

Day Later... SIREN Kevin's POV...

It was too cold... Somehow I managed to remember some parts of my real self... But I've managed to get to the Citadel unscathed...

It seems these Smart Mines are quite smart of them to place...

I looked around and...

Huh, almost no one is here. It's like a ghost town...

I looked around and saw the piano... I only remember a song from Sabaton...

Maybe a little piano and singing won't hurt... But... Why does this song feel familiar...?

At the German, Israeli & American Italian Trio...

Now they're wearing normal Military Winter Clothing.

Michael: Alright. Alright... Let's move the piano-

https://youtu.be/goXDAFtkJLw

They suddenly heard the piano, and they saw him.

The SIREN Commissar...

But he's playing the piano...

Richard: Wait... I recognize that song!

Michael: Sabaton's Christmas Truce... 

Ezra: I'll get the guitar! We might be able to bring him home without fighting him!

Ezra borrowed Cleveland's Guitar and kit. Michael got his headset microphone and Richard has the drum kit. And quietly got there... Which... Michael got a new one.

Brothers of Valor: Christmas Homecoming.

SIREN Kevin: Silence... Oh, I remember the silence... On a cold winter day...

Some of the Shipgirls took notice and checked... And they were surprised to see him, just singing and playing the piano. They decided to listen in. Even some of the Soldiers are surprised and decided to do the same. While the trios' were quietly set up for their Christmas Truce. More came in to check...

SIREN Kevin: After many months on the battlefields... And we were used to the violence... Then all the cannons went silent...! And the snow fell, voices sang to me from... the Citadel...

And then... Richard goes lightly on the cymbals... Surprising the SIREN Kevin.

Richard, Ezra & Michael: We are all! We are all! We are all! We are all brothers!

Ezra went in hard on the guitar, and as Richard, Ezra, and Michael started with, the SIREN Kevin joined in...

SIREN Kevin's Mind: Wait... I recognize them! They're... My friends... If they wanted a performance, let's give them a brilliant one!

Richard, Ezra, Kevin & Michael: And today we're all brothers! Tonight, we're a family! A moment of peace, for the world that've entered a cruel war!

Jintsuu: Holy... crap...

Takao: Kevin... How did he manage to...!?

Enterprise: He's still there... I knew it... *sobbing*

Yorktown: Thank goodness, he remembers us...

Helena: At least their music and singing are pretty nice!

Richard, Ezra, Kevin & Michael: Today we're all brothers! We'll drink and unite! Now, the Holy Christmas has arrived, and the snow turns the ground white! Hear Carols from the Frontlines! We sing O Holy Night! Our guns are laid to rest among snowflakes! A Christmas at the Frontlines! A Christmas on the front, far from home!~

And back to Kevin with his Piano Solo.

More Shipgirls have arrived and Richelieu along with both Iris and Vichya was shocked to see the SIREN Kevin now singing with them.

Saint Louis: The Holy Christmas... No wonder...

Bearn: Maybe it's not the Holy Light that brought him back... But, the comforting breeze of Christmas's Holy Night that helped him remember...?

Le Triomphant: Either way, the song felt rejuvenating!

Le Malin: Somehow, I could stay awake longer with their song...

Foch: Wow... Richie is really a skilled drummer!~

Gascogne: Feelings of "happiness" from their music and singing, confirmed... Wish to sing along with them.

Richelieu: That's impressive... Even without God's Light, a miracle just happened.

Jean Bart: How... How did that work...?

Almost all of the Shipgirls are singling along, some are very happy that Kevin has remembered them, and others are surprised that the SIREN Commissar is singing with Michael, Ezra, and Richard, are the SIRENs.

To the SIRENs, seeing as this might be their only hope to form an Alliance with the United Nations, they joined in, surprising to the Shipgirls.

Kevin: Madness... Oh, I remember the sadness...

Ezra: We were hiding our tears...

Richard: In a foreign land where we faced our fears...

Michael: We were Soldiers... Carried the war on our shoulders...

Ezra & Michael: For our Nations...

Kevin & Richard: Is that why we bury our friends...?

And then...

Everyone: WE ARE ALL! WE ARE ALL! WE ARE ALL! WE ARE ALL BROTHERS!/ (Shipgirls) SISTERS!

Everyone cheered as Christmas is now an exciting and very interesting one. Not only their Commander has returned, but also the SIRENs have joined in to listen and even sing.

Maybe... Just maybe... They could make friends with the SIRENs and be able to have a leg up against Nanaki.

Everyone: And today we're all Brothers!/Sisters! Tonight, we're a family! A moment of peace, for the world that've entered a cruel war! Today we're all Brothers!/Sisters! We'll drink and unite! Now, the Holy Christmas has arrived, and the snow turns the ground white! Hear Carols from the Frontlines! We sing O Holy Night! Our guns are laid to rest among snowflakes! A Christmas at the Frontlines! A Christmas on the front, far from home!~

Then Ezra goes for his Guitar Solo, while Richard provided support.

Hood: My goodness, I suppose their way are special in their own terms.~

Vanguard: This is going to be the best Christmas concert I've ever seen!

Shinano: A very interesting Christmas...

Nagato: Indeed. Quite a turn of events.

FDG: *Sobbing* I'm so proud of my child (Kevin)...

Agir: My...~ I'm starting to like him even more.~

August von Perseval: You're not alone.~ I wonder how long will Ezra last on our 'night battle'?

Prinz Rupprecht: That dummkopf is mine, you hear?!

Odin: Who said he's yours!? He belongs to who he wishes to be with!

Essex:

Shangri La: Essex...?

Saint Louis: My.~ My.~ So the Commander has returned?~

Montpelier: At least he didn't kill Cleveland... I could respect his attempts to keep his hands stained from blood...

Baltimore: Before, I thought he was cold-hearted like those who see us as weapons... But now? He's just lost in the dark, without any understanding of love...

Denver: Wow... That's sad...

Bremerton: But, he often smiles! Although I can tell they're fake... But this!? The first time I see the Commander smiled naturally!

L'Opinatire: He can sing well!?

Washington: Who cares!? Here it comes!

Everyone: WE ARE ALL! WE ARE ALL! WE ARE ALL! WE ARE ALL BROTHERS!/ (Shipgirls) SISTERS!

Everyone: And today we're all Brothers!/Sisters! Tonight, we're a family! A moment of peace, for the world that've entered a cruel war! Today we're all Brothers!/Sisters! We'll drink and unite! Now, the Holy Christmas has arrived, and the snow turns the ground white!

Michael: A Christmas on the Frontlines!

Ezra: We walk among our brothers!

Richard: We don't think about tomorrow!

Kevin: The Battle will commence!

Ezra, Richard, Michael & Kevin: When we celebrated Christmas! We thought about our brothers, those who never made it home when the battle had commenced!

And Kevin finishes with his piano, slowly dying down to silence.

With that finished...

Kevin: ...

They went silent, worried that he was having a facade... And using it to wipe them all out...

Kevin: ... What? No Hot Chocolate for me? Some welcoming party...

They cheered as they noticed that really their Commander. They raised a sign that said...

[WELCOME BACK HOME, COMMANDER!]

Michael: Here you go, kid.

Michael gave him a cup of hot chocolate.

Kevin: Thanks. Glad to be home though.

Ezra immediately hugged Kevin with his tears on Kevin's current clothing as Richard joined in. Michael just chuckles.

Ezra: You son of a bitch... Throwing jokes like that...

Richard: Welcome home, man! Welcome home!

Kevin: Heheheh... Sorry for that... But I've got something for you guys.

They let go and gave each.

Ezra got a picture of him along with Kevin, Zheng, Takara, Amel, Kiran, General Parker, and a holographic Khalid. Now in 4k.

Ezra: Dude! Thanks! Always with the memories huh?

Kevin: Yep!

Richard: What about mine?

Kevin gave him, an XM250, along with a good amount of ammo.

Richard: HOLY SHIT!!! THANKS, MAN!!!

Kevin: Use it wisely!

Michael: Well?

A Cowboy hat, that Michael wanted to have since he was a kid.

Michael: Well now... That's something from Red Dead Redemption 2?

Kevin: You could say that.

Michael: *Chuckle* Thanks a lot, I like it.