Author: The story has now come into a conclusion but "their story" has yet to come into an end. The story could return with a follow-up in the future but that is still uncertain. Now, I'm off to focusing on 'Back on the Battlefield' while thinking of what anime or game I want to make a story next.

"To all who read from the start to the finish, thank you for supporting and following this mangled of a story I made out of my love for the two games. I hope you guys will look forward to more stories in the future"

P.S.

There's an alternate ending that I set aside where I killed of AL Tirpitz just because I'm thinking of a "not happy ending".

It's been two months since then...

Nagato sits by the command room, drinking coffee and looking at the fleets' post-sortie reports. So far, there hasn't been any strange phenomenon ever since the incident two months ago. There was no sign of another rift opening or unusual weather phenomenon.

"Hmm..."

Nagato continued to scan through several papers while Mutsu arranges the folders and file them up.

"Are you still worried someone might get send to another world?" Mutsu giggled

"A little. It's been two months and it's been quiet"

"Still, you were on a real adventure but you couldn't report it to the navy"

"The existence of highly advanced beings known as Sirens and a parallel world must remain a secret for obvious reasons"

"You're right. They might think you're making it up and if they believe it, it will cause an uproar within the government. They'll try to find a way to get there and disturb the natural order"

Mutsu find it hilarious on how the government would react and what would they do once they found out that it's possible to travel to a parallel world. Nagato, on the other hand, fear it because of the nature of humans.

"By the way, how did the admiral react when you told her?" Mutsu almost forgot to ask

"She spat out her coffee and almost choked"

"Hahahaha. Yeah, that's how she would react"

"She was really confused and had a headache trying to understand about the sci-fi level of experience we had" Nagato shrugged her shoulders

"At least she agreed to keep it a secret since the humans here will just cause trouble to the other world if they find out. We don't want more headaches to deal with"

Nagato resumed to reading more of the reports, taking a small sip from her warm coffee while Mutsu assisted her. Meanwhile, the other girls have resumed their normal lives as well. Bismarck swings and thrusts her new sword back and forth while Graf Zeppelin awkwardly watches on the side.

"You really love that sword, don't you?" Graf nervously laughed

"This thing can cut through anything! Even Abyssals!" Bismarck's eyes sparkled

"Just try not to break it. You know you can't get a replacement unless you learn how to return to the other world"

"Don't worry. I'll take care of this since this is a parting gift from my Iron Blood counterpart"

Bismarck raised the sword high in the air and proudly gazed on it, treasuring the parting gift by the other Bismarck in that other world.

"Whenever I keep thinking about the other me and the other world...I still miss them" Bismarck sheathed the sword

"You must have a lot of fun just judging by the adventure you told all of us"

"...I'm still worried about the other me" Bismarck dropped her shoulders

"I'm sure they will be able to meet again and hopefully resolve their issues. Though I don't know if I should be saying such things since I wasn't even there"

Bismarck remained restless even after two months has passed. She left without seeing the resolution on their part which is a cliffhanger for Bismarck. She wanted to see the end but she can never go back to the other world again unless someone opens a rift again.

"Well, I wish I could go there out of curiosity but the thing you used to go home broke after one usage" Graf Zeppelin sighs in disappointment

"Hahaha! The other world was a really fun place meeting all sorts of other versions of shipgirls we know but it's not a world for us. We have deepsea monstrosities here, they have something like it Abyssals were redesigned with an alien theme. They even shoot lasers!"

Yeah, I' think I'll pass. The Abyssals were troublesome enough. I don't want to deal with Abyssals that have futuristic weapons"

Graf Zeppelin not wanting to deal with another type of pale white creatures with deep-sea theme, waved her hand and changed her mind. On the other hand, Bismarck continued to admire her current favorite weapon. While Bismarck resumed enjoying her gift, the three Royal navy shipgirls discuss about the aftermath.

"The existence of other versions of ourselves is highly interesting" Warspite slightly spun her cup of tea

"I still can't believe my counterpart is such a disgrace!" Ark Royal gritted her teeth

"Well, my counterpart is an interesting one! We ended up having an arm wrestling. Since we are both Nelsons, we both lost to each other" Nelson looked proud

"It seems you two had a lot of fun while we were all worried where you have disappeared"

Warspite giggled since even though Nagato's fleet suddenly disappeared in the middle of an operation, the fleet had a lot different experience while trapped in the other world.

"Everyone in the base panicked because of your mysterious disappearance. It wasn't easy for the admiral to explain how ten of her shipgirls disappeared and popped out a week later" Warspite smiled and laughed about it

"I heard the admiral kept it a secret for the other world's sake" Nelson wanted to confirm

"That's correct. To make sure the other world remained undisturbed, the admiral agreed for the sake of natural order" Warspite confirmed

"Yeah. We don't want the world government to find out about the existence of the highly advanced Sirens and a parallel world" Ark Royal shrugged her shoulders

"By the way, I've learned from Bismarck lately that the other Tirpitz abandoned her nation for her personal goals?" Warspite is curious

"We don't know what happened but the other Tirpitz struck down her own Bismarck and left" Nelson isn't entirely sure if the reason

"I see. The ending was rather...unfortunate"

Warspite crossed her fingers together and let out a dismayed sigh but she had expected this. It's not everyone can get the ending they wanted like in a fairytale where everyone "all live happily ever after".

Iron Blood...

Two months after Tirpitz abandoned Iron Blood and disappeared, she is still yet to be found. Bismarck had searched every ocean and seas but Tirpitz's whereabouts remained unknown. Even if it's almost impossible to find her, Bismarck refuses to give up knowing Tirpitz is still out there.

"Tirpitz..."

Bismarck deeply exhales, exhausted at her everyday work as the leader of Iron Blood. Ever since the incident two months ago where Tirpitz announced she would leave and "betray" Iron Blood, Bismarck couldn't remove the ache in her chest whenever she thinks about it. She deeply cared for her younger sister but that younger sister ended abandoning her own nation.

"I don't understand why..."

To her it doesn't make sense that Tirpitz decided to leave her own nation because she doesn't want to have the same fate as Tyrant. She could stay and still change it but Tirpitz decided she would "betray" Iron Blood for her own goals. Rummaging through an old box, Bismarck picked up a familiar box.

"This is..."

It was a mysterious box that Tirpitz wanted Bismarck to open once the last battle with Tyrant is over. Tirpitz said it contained something she wanted to give to Bismarck but couldn't find the right opportunity. Bismarck was immediately suspicious since why would Tirpitz leave a gift to Bismarck if she had planned to leave Iron Blood.

(I couldn't open this back then because I was still caught at what happened. I must have threw this in the box without thinking...)

Bismarck stared at square and thin box for a moment, visibly nervous at opening it instantly. Mustering up enough courage, she slowly grabbed the cover and lifted it. She widened her eyes to see some sort of protruding Rubik's cube-like object but with circuit lines and a symbol.

"What...is this? This looks like something from a Siren part..."

Cautious, Bismarck gently held the metallic object she can hold with her fingers and flipped it from the front and back. That piece of metal stores vital information that Tirpitz has been keeping. Unknown to Bismarck, Tirpitz left it on purpose when she planned her betrayal.

"...?!"

The circuit lines lighted up until it reached the symbol. Bismarck froze when circuit lines crawled to her hand then to her arm until it reached to her face. She couldn't move or throw away the memory storage device if she wanted to since the light is being slowly being absorbed by her body.

[Coordinates successfully transferred]

She saw those words within her head and her thought process almost overloaded from the amount of information she's receiving. What she saw is some sort of map closing in, slowly pinpointing the exact location of someone. Then she saw a memory flash right before her as if she was there when it happened.

"To think she managed to give the Coordinates to you so sneakily" King George V giggled

"I have no intention of keeping it anymore since I know where she is and where she will go" Tirpitz sighed

"Is this going to be okay? You're going leave Iron Blood and it's going to be seen as betrayal. Bismarck isn't going to be happy"

"This is the only way to prevent a future where Iron Blood and everyone else no longer exists. Tyrant is someone from a different timeline and she doesn't want this timeline to suffer the same. You should know this more than I am, captain"

"Hahahaha. It's a secret I don't want to spoil right now. I'm doing what I can to protect the Royal navy from doing something stupid"

Bismarck is confused to why she's seeing a conversation between King George V and Tirpitz in an unknown location. There was slight suspicion before but now Bismarck's suspicion grew.

"I'm leaving giving the data core to her in your hands. I won't stay here long after I do what I have to do" Tirpitz held out her hand and manifested a data core

"Essex could have done this job instead but she's helping out the commander right now" King George sounded reluctant

"You have to give it to her since she's the only one whom the future Bismarck wanted to entrust this"

"Why not G? Oh yeah, this is a different timeline so at the end of the day, they will save themselves"

"..."

"Again, are you okay with this? Bismarck will chase you wherever you go because you're going to hurt her feelings...badly"

"Then I'll be waiting for her..." Tirpitz faintly smiled

"I see. Then I'll take care of things while you go after that person at the other side. I'll catch up when the time comes"

After that, the memory is cut off and Bismarck regained her consciousness again. She staggered back, dizzy because of the side effects of having a copy of the data core being absorbed in her body. As she tries to process the information, she learned one thing.

"Tirpitz left the Coordinates to me. To find the person...Tyrant is fiercely preventing from being exposed"

As her mental cube absorbed the information, there was an image of a girl a bit younger than her, looking directly at Bismarck and smiling...leaving an ominous message.

I'll be waiting for you and the others...

The unknown girl gently smiled at her as if that person knew Bismarck more than anyone. That person will be waiting for her and certain other shipgirls to find her and meet her. Until then, her identity will remain a secret.

In an unknown location...

Before her eventual demise, Tyrant had hidden something from both the Sirens and shipgirls, its existence only known to her. The reason for it is unknown as she kept all her secrets to her grave upon ending her own life along with Tester Beta.

...

It turned to be a sealed box now within someone's ship after being hidden away for quite some time. It wasn't completely hidden from the world so someone ended up locating it but it only took two months to find.

...

The contents inside the container remained dormant and hasn't said a thing but the one who found it let it be for a while and allowed it to awaken when it feels like waking up. That person had put up a lot of effort stealthily searching for it and prying open the heavily sealed container.

"..."

The sole content of the container, a "girl", awakening from her slumber, slowly opens her eyes and immediately saw the bright and sunny sky above her. She blinked her eyes, confused at her whereabouts or how she even got there.

"Where...am I?"

When she finally came to her full senses, she recognized her surroundings as an unknown island and her being on an unknown anchored ship. Recognizing the ship upon looking at its main guns and bridge, the girl rubbed her head and inspected her surroundings.

"You finally woke up. It took me a couple of months to find you and three days to wake you up"

"...?!" Startled, she immediately turned towards who just spoke

It was Tirpitz who wore a slightly grim and cold expression similar to Tyrant but she was smiling, greeting the guest in her ship. She is relieved that she no longer has to wait any further.

"How are you doing...Eugen?"

Prinz Eugen, the girl whom Tirpitz had searched for a while for an unknown reason and purpose. The confused Prinz Eugen looked all direction since she was "asleep" and woke up in an unlikely place. Not to mention, she woke up in someone else's ship.

"Tirpitz...?"

"Good morning. Did you have a good rest? Because a lot has happened while you were dormant"

"What happened? Last thing I remember is another Prinz Eugen appeared in front of me-"

"That was the future Prinz Eugen who kind of put you out of action first before she destroyed her own body in the end. Yeah, she had to since she needed to get within Iron Blood without Bismarck noticing something is off"

"..."

"It seems I have a lot of explaining to do but first, we should explore this wonderful country called...France"

Right now, Prinz Eugen is greatly confused and it's only natural since she had been asleep for more than two months without knowledge of what has happened. Tirpitz gently smiled again as she's somewhat excited to inform the newly awakened Prinz Eugen of all the events she had missed.

END