Every shipgirl was waiting on Matthew's orders.

Alright Queen Elizabeth you will be flagship duty i'll handle solo

QE: Very well son.

Matthew: This is it people our final fight against the sirens is upon us fight until our last breath,fight until our bodies give out,fight until victory!

The crowd roars as morale was boosted giving them encouragement.

PoW: Carriers and battleships need to distract sirens from Matthew while he is sabotaging important equpiment.

Bismarck POV

When I heard that Matthew was going to sabotage some sirens inside out i felt like my heart just shattered like if anything goes wrong and he's comprimised I feel like the one responsible for his safetey.

Bismarck: Matthew do you have a minute?

Matthew: Sure what you need?

Our young biscuit starts blushing.

Bismarck(thoughts) He's been through war after war and that makes him a veteran i wonder how he puts up with it. I'll have to talk to Hood about what keeps him in check.

Bismarck: I...I wanted to ask if you would become m...my boyfriend.

Matthew: Sure after the war and once we 've-

Bismarck: There is one other thing i wanted to ask and that is that Tirpitz/Graf Zeppelin/ Freidrich Der Grosse and I had fallen in love with you. Would you date us admiral?

Matthew became speechless after letting the information pass through he shakes the thought of it out from his mind.

Matthew: There is one problem with that did you ask the other shipgirls that you are willing to share me with the others.

Bismarck/Akagi/Graf Zeppelin/Atago/Shoukaku/Hood/Warspite/Tirpitz/Roon/Taihou/Hornet/Yorktown : We already discussed this and came to an agreement we all share you!

Matthew smiled seeing that they are no longer fighting among themselves.

Matthew: Ok girls this is it [Starts cracking his neck, hands,elbows as his aura starts getting stronger]

Matthew POV

After my warm up my body feels lighter then before. Then i see an army of siren marching onto our location just like my world.

Flashback 300 years ago

Curse you bastards you will feel true pain when i get out of this you killed everyone i loved i will have my vengeance and that's final you shits.

Bandit 1: Oh boohoo the boss wants you alive he wants to keep you as his pet.

Bandit 2: That doesn't mean what th-

Matthew attacks the four bandits and kills them brutally just like a certain someone

Meanwhile in hell

Doomslayer: Achoo!

Vega:Are you ok Slayer?

 Doomslayer: Someone is talking about me

Back our protagonist

Matthew sneaks up to the ringleader's hideout and sandman kills him

Matthew:For my family you die.

He then kicks the dead ringleader's body over the cliff face watching as guts spews from the corpse. He then picks up a flamethrower and burns the whole bandit camp to the ground killing everyone inside.

Flashback end

Bismarck: Matthew!

Matthew:Huh?! What's going on?

Bismarck Finally you're back from daydreaming

Matthew: it wasn't a daydream more like a flashback 300 years ago.

Bismarck: Oh im sorry to assume that was out of character for me.

Matthew:Don't sweat it back in the wasteland i was known to be brutal and ruthless to my enemies everyone feared my titles like "The Grimm Reaper" or Head Hunter or maybe The Unchained Killing Machine.

Bismarck had every right to be scared of him but apart of her known comfort and peace her instincts were telling her that this man will kill all sirens who wronged him.

A/n get that reference?

Matthew proceeds to put on helmet marked with a symbol

A/n Ignore the suit helmet is red with a black pentagram symbol.

Purifier POV

Ho This guy again and why does he have that pentagram on his helmet?

Purifier: You again?

Matthew cocked his shotgun.

Matthew: Lets Rock! EVERYONE FIRE AT WILL!!!

Matthew: Fight me if you're ready to die cos i am.

Bismarck POV

Did i just hear him say "fight me if you're ready to die cos i am"

How reckless of him to say that wait that look what is he doing?

Matthew began removing limiters to his strength and speed accending him to new found power.

He stabs 4 adrenalin shots into him as his reflexes were boosted dramatically.

Matthew berserker stage: LETS ROCK!

I couldn't see him the fight was to fast for me to see then i see him running at 90mph!? What made him so damn fast and stong?  The questions start rising as my future boyfriend continued to fight with killer intent.

Matthew POV

I feel like a brute but with inhuman speed no-one could get up to 350mph my top speed.

Matthew: Oh good you brought more for me to kill [ gives off a psychotic smile ]

Matthew:LETS ROCK!

Queen Elizabeth POV

I fired a salvo of projectiles toward the empress III along with my husband and assistant.

QE: We need to provide cover for the destroyers

Warspite: Of course your majesty.

QE: How is my son doing Bel?

Belfast: He is keeping up with purifier and WOAH! To think he can pull his punches so quickly and so accurately means he is serious.

QE: Bel what are you trying to say this isn't like you?

Belfast: Master has become different in a way which he craves battle in other words berserk.

QE:!!!

QE: Bismarck you said you wanted Matthew to be your boyfriend right?

Bismarck: Yes what happened?

QE: Matthew went berserk and i need someone to accompany him to stop him from harming himself and others.

Bismarck: Oh no! Then if what you say is true then-

QE: theres more (She gives Bismarck the note from his days on fallout)

Bismarck reads the note and her eyes widened tears threatening to drop.

Bismarck: Is this what he went through?

QE: Yes well now the inner demon within Matthew has taken over, leading only to kill sirens in his berserker stage.

Bismarck: what are the other stages?

QE: Tyrant stage the most dangerous of all, the abillity to physically rip of a siren's head with brute force is unheard of and yet he had no emotion just like the first time he battled Purifier and Tester. 

Bismarck: What you let him battle Tester?! Are you out of your mind?!

QE: He Saved me from getting sunk!

KGV: Why don't you both go i'll handle The Empress.

QE/Bismarck: Alright/Don't die.

Meanwhile with Matthew

Purifier and Tester were getting their asses kicked by the inhuman psychopath.

Matthew:Hehehe this is fun! Now i feel truely alive! COME GET SOME WORTHLESS SIREN WANNABES HAHAHAHA!!

Matthew: Time to activate the "Tyrant"

He Jumps from the 32 meter drop landing on the sandbank his muscles grew his face became emotionless. He had become the "Tyrant".

Purifier became horrified and wanted out of the battle.

Tester peed herself due to the fact that Matthew's aura surrounding him grew exponentially

Matthew: Hehe Lets get this over with.

Matthew sliced off the sirens head and desembodied Tester.

Bismarck: Matthew calm down this isn't you.

Matthew/???: Oh Matthew isn't here at the moment he will kill all sirens that dare wrong him.

QE: Listen Matthew i know you're in there fight it resist it

Matthew:AGGHHH!!! DAMN IT ALL!!!

QE: That's it keep resisting.

Bismarck: Matthew if you come back to us I'll marry you i just want my boyfriend back.

Matthew: URRGHHH! B..B.....Bismarck kill me before i..AGHHH!!

Matthew/???: I don't think so. You won't die you will kill sirens.

Matthew lets out a loud yell suppressing his embodied demon.

Matthew: *pant**pant* *collapses into the water.

Bismarck:!! Matthew! Graf Zeppelin i need you here ASAP Matthew is down

Graf Zeppelin: On my way check if he has a pulse.

Bismarck: On it.

Meanwhile with King George V.

KGV: UGH! Getting hit is really taking a toll on me.

Belfast: we need to suppress fire to the Empress.

Sheffield: I'll do it. Suppressing fire!

The Empress: you think you can harm me think again.

Empress POV

Why hasn't Tester and Purifier come back yet this is unusally odd.

She then Realised that a human took down purifier which she feared he took down Tester as well.

Impossible that can't be. My calculations must've been way off i underestermated him.

Empress:You may have won this time but when i come back i will be stronger than before.

Matthew: Don't think so

Empress: Wha-

Matthew stabs the Empress with his sword killing ending her terror.

Matthew then falls into the water as he sleeps.

Bismark POV:

I found Matthew laying on the water with a smile on his face sleeping peacefully i just want to cuddle him.

Graf Zeppelin: I'm here where is he?

Bismarck:Here.

Graf Zeppelin looked dumbfounded that Matthew is sleeping peacefully

Graf Zeppelin: take him aboard i'll need to tend to his injuries.

15 days later

Matthew: Ugh what happened?

Graf Zeppelin: Ahh good you're awake how do you feel?

Matthew: Better how long was i out?

Graf Zeppelin: 15 days.

It didn't surprise Matthew the least he knew he would be out cold when someone pushed him over the edge.

Matthew: Did we win?

Graf Zeppelin:You killed the Empress tester and Purifier.

Matthew: Heh the reason the sirens called me a monster was because my body endured radiation and by taking radiation pills i survived long enough for my body to adjust then put into cryostasis.

Graf Zeppelin was shocked that a mere human could withstand radiation and cryostasis after been shown by the queen of his note the single piece of evidence of him from another world.

Bismarck/Hood/Warspite/Belfast/Akagi/Taihou/Z23/U556 and all the rest watched from a distance that their legendary hero admiral became one of the greatest historical feats ever happened.

Epilogue: 5 years later

Bismarck Married Matthew and ended up having six kids.

Queen Elizabeth asked her adopted son to a tea party which he accepted.

The little destroyers were playing around as if nothing happend.

King George V went to teach the destroyers on Maths,English with the help of Z23.

Prince of Wales Continued service to the Royal Navy before finally relaxing.

Akagi and Kaga still do their day to day chores round their stationed quarters with amagi trying to stop arguements.

Prinz Eugen Continued to make fun of Hipper up to this very day and get wasted.

Warspite started a hobby of inventing new technology.

Hood became a cook and started learning different reciepes along side Nevada.

Takao learned advanced sword training from Matthew and continued to expand her skills.

Atago wanted to give out hugs to people.

Akashi went to set out on exploration.

Vestal continued her work as a repair ship before she took up a hobby of research.

And Now.

Bismarck: Wake up honey.

Matthew: imm'awake time flies fast good to see these kids grow up.

Bismarck: I'm so glad i married you i knew you would protect everyone on this island even though you're the last human.

Matthew:hehe they'll be more we just need more males then we can repopulate and start over again.

Bismarck: Yeah.

???: daddy come play with me.

Matthew: alright little tiger.

???:Yay!

Matthew: Michael get the ball

Michael:Hehe

Timeskip 30 years later.

Michael/Eric/Andy/Daniel: it's been fun with you pops

There laid Matthew a tomb of him as a war hero and made peace to all factions at the same time.

THE END