In outer space, right above the Anime Azur Lane World:

Arthur Godfrey's POV

It has been millenia since I come across to another Earth, the last one I visited was destroyed by me. Well enough reminiscing of the past, I should focus on the present. I quickly take a closer look at the planet. And guess what I saw? Wisdom Cubes and shipgirls, just like the previous Earth. And my creations - The Sirens, are also present. Though to be fair, I like to view them as my daughters, and spending time with them before their timeline's destruction solidifies that viewpoints. That being said, I hack into their network to look for information before descending.

5 minutes later

I can hear my bodyguard - Arbiter I: Titan, who
I normally call her by the name "Viktoriya", calls for me

Arbiter I's appearance:
(She has no horns & scales)

Viktoriya: Did you find any information, my master?

Me: Yes. Can you call my daughter Elizabeth here for briefing?

Elizabeth: There's no need to. I'm already here

Elizabeth's appearance

Me: Good. Now I will begin briefing. Apparently this world had the same history as ours, however the point of divergence began in 20 July 1944. Hitler's assasination was successful, Nazi Party lost control over Germany, and the new government make peace with the Allies. As for Japan, they tried to prevent the information of Germany switching sides from reaching Emperor Hirohito and the populace but failed, causing the people of Japan to lose faith on the government & army. And so,on January 1st, 1945, Emperor Hirohito ordered Japan to surrender after much, much debate. The Instrument of Surrender was signed on January 8th. There was no war until June 6th, 1945, when a Siren aircraft crashes at Roswell. 2 weeks after that, the first Siren fleet invaded Earth and attacked Midway, thus signalling the Human-Siren War. This world's Admiral Halsey was killed in the battle. This new foe proved too strong for the human navies, so in 6 months, they lost control of 90% of the ocean. But then all nations decided to band together, and on April 30th, 1946, the Wisdom Cubes were discovered, and shipgirls were created. They formed the naval coalition "Azur Lane", gradually pushing back the Sirens. Current year for this world on their network is....1950

Viktoriya: I-I cannot believe this....We were created to protect humanity. Why would my kin do the opposite?

Me: To answer that, it's because they think I was dead. The data logs also say that the Corrupted was still out there, chasing for them. Seems like some the Corrupted have managed to run away from my outburst. Anyway, back to topic: The Sirens are invading timelines so they can be stronger, while forcing humanity to advance faster. And this timeline, obviously is one of them. So let's gear up, descend and we will help the shipgirls. I promise I will have a talk with them.

As Arbiter I and Elizabeth are making preparations, I said:

"You guys can go first. I will go and meet others"

And...that's what I did.

Elizabeth: Shall we wait for him or go, big sis?

Viktoriya: I think we should wait, my lady.

3rd person POV:

Somewhere in heaven, Arthur has picked up the souls of four admirals: William "Bull" Halsey, Isoroku Yamamoto, John Tovey and Gunther Lutjens. The souls are standing in front of him (Order from left -> right is mentioned above)

Arthur: You guys have been pickup by me because I have an offer.

The 4 admirals: Who are you? And what is this "offer" you are talking about

Arthur: I am a god of some sorts, but you guys can call me Arthur Godfrey. And I am here of offer you a chance to live a new life, in another world. Do you agree?

The 4 admirals: Is there any notable details about that world?

Arthur: In that world, warships, including those that you four used to command, have the form of human girls thank to something called Wisdom Cubes. And extraterrestrial beings called "Sirens" are invading that world. And I will ask again: Do you agree to be reborn and aid humanity?

The 4 admirals: ......We agree.

Arthur: By the way, here's some notes I want to add:

Actually the one on the far right, Gunther Lutjens, came from that world

You guys will be reborn as shipmen (puts Wisdom Cubes inside them), and having the appearance in your 30s

In front of you are books about your ships, read them

More detailed info about that world's history has been imprinted inside your brain

And lastly, familiarize yourself with your new abilities. You guys will be transported to the year of 1959

The 4 Admirals: Duly noted

Arthur: See you guys on 1959

Arthur's POV:

Now that's done, I shall meet with Viktoriya and Elizabeth

Me: All right girls, I'm done.

Elizabeth: I forgot to ask earlier, but whom did you talk to?

Me: Four admirals: William "Bull" Halsey, John Tovey, Isoroku Yamamoto and Gunther Lutjens. I give them Wisdom Cubes that contains ships with 21st-century weaponry. Lutjens is native to this world though

Elizabeth: Can we go now, dad?

Me: I and Viktoriya will appear in 1950, you, on other hand, will appear in 1959 like those 4.

Elizabeth: That's sucks. Why can't I follow you, father

Me: We cannot have overpowered individuals appear too early on the battlefields, it will end things too quickly, ruins the fun

Elizabeth: Says the man who is an absurdly powerful god.

Me: Don't say that, young lady. Me and Viktoriya will only do paperwork. Besides, things will not go big until 1959, when a split-up occur.

Elizabeth: How do you know....nevermind, forget it. Of course divination would be a trivial matter for you. See you on 1959, then

And thus begin my descent to this world with Viktoriya. And the Sirens will receive a surprise message anytime soon

3rd person POV

Forward to a Siren base at North Pole, where Observer Alpha resides. She's watching what is happening around the world then suddenly, Tester Beta from a level below hers, rushed upstairs. She barely has time to catch her breath when Observer asks: "What caused you to rush into my place?"

Tester, still catching breath, replied: The Empress told me....that....our network.....has received a message from an unknown individual. The Arbiters are panicking because they don't know how the messenger can hack into the network

Then the screen changes into a black color.

Observer: Why does the screen changes into black?

Tester: I think it's because....

She does not have the time to finish her sentence as a message in red pops up. It says:

DADDY'S COMING

Tester: Could it be.....

Observer: No Tester, we all know what happened that day. He's dead!

Tester: Lucky for you that Purifier is not here. That girl.....deep inside she still hopes that he is alive, somehow. If you said that to her, I dare not imagining how broken her mind would be. She might lock herself somewhere and cry for months.

Observer: I know....*sigh*. Everyone thinks that she's a battle-loving maniac, and only we know that it's a facade. She's only acting strong, but in reality, that's just an act she put to try to hide and overcome the pain of loss.

Tester: All we can do is accelerate the evolution of humanity and ours so we can avenge him one day.

First Chapter has been posted! Hope you guys enjoy reading!

This is my first story. Feel free to comment and tell me what I need to improve on as the story goes on!

EDIT: Some changes in the dates of events