Okay 3rd time's a charm with this story as well. Modifications to all chapters have been made so you have to read them again in order to find out what's changed.

Okay Hayane234 signing out and I hope you enjoy.

It was the year 2019 and the world was in a state of peace and tranquility, trade and tourism were at an all time high, war was pretty much was non-existence except in the family home, everyone was getting along just fine. However all of that was going to change….

It all started with a few ships getting sunk, a fishing trawler here, a tug boat there, small scale vessels. What came from the survivor's mouths though unnerved the people of the world, all they could say was that they saw a blackish blur rushing at them without warning, unleashing ungodly sounds as it tore through the ship's hull and just as quickly as it appeared it vanished beneath the waves.

The governments at the time dismissed what had been said as nonsense saying that they must have been seeing things and that the ship's engine had exploded stating that was the reason all of the ships had sank. Little did they know that this was just start.

A few months had passed since then and the frequency of ships being sunk had been on the rise, more evidence of the attackers had been obtained showing what seemed to be a shark-like creature with a sole glowing green eye and what appeared to be a cannon barrel sticking out of its mouth.

It was then that all hell broke loose, the JMSDF Helicopter Destroyer Izumo was attacked without warning by these creatures, which by then had been called 'abyssals ', the ship was outmatched and outgunned and was quickly sunk beneath the waves with all hands lost. It was the biggest naval incident that the Japanese had suffered from since ww2.

This victory for the Abyssals sparked the beginning of a war against humanity, with Abyssal groups popping up all over the world attacking every ship and port city that they could causing destruction wherever they went plunging the world into chaos.

The navies of the world fought long and hard against the enemy, they had won some pretty significant battles against the Abyssals but alas they were no match for the endless waves of destruction brought by the enemy and every navy had suffered greatly at the hands of their foes and as a result the Abyssals had taken the world's oceans for themselves leaving the nation's cut off from one another causing trade to collapse, families to be separated and no way to properly protect themselves anymore, clearly something needed to be done.

The answer to the abyssal threat came in the form of a Japanese scientist known as Takahashi Ryosuke, who by some miracle had managed to capture some live abyssals and thus he began his experiments to figure out just what made the enemy tick and what they found out had shocked the team.

What they had discovered was that the abyssals that they had captured all contained blue spherical cores, which produced some strange energy which was assumed to be the source of the Abyssals power, and upon closer inspection inside the core was a ship fragment, which when analyzed showed that it came from the ships used by the Japanese during WW2.

It was then that one of the older female members of the team on accident touched the core and was blinded by a bright blue light, the other members rushed in just as the blue light had faded and saw that the core had vanished, just as they were about to ask what had happened suddenly out of nowhere a long piece of material akin to a flight deck had appeared on her left arm, a carrier full of arrows appeared on her back and lastly a large bow appeared in her left hand.

This shocked both the person and the rest of the team members for a while, but it didn't take long for the woman to undergo tests to see if nothing bad had happened to her, in fact she was perfectly healthy, they did find that though she was no longer fully human, but both human and ship. More tests were then performed and apart from the fact that she could now launch planes, stand on water and that her diet had changed a bit, she took a liking to eating steel and drinking fuel, she was perfectly normal.

It was after this that Professor Takahashi took the remaining 3 cores that they had and asked if anyone else wanted to try and replicate what had happened with the older woman, a lot of them had worries about what had happened, but eventually three girls of varying ages decided to try it out and as a result three more human-ship hybrids came into existence, the equipment they gained differed from one another. The exact same tests were performed on the three girls and the result were the same.

Due to extensive research into the core's fragments before hand the ships that they had come from had been determined, aircraft carrier Houshou, destroyer Inazuma, destroyer Samidare and lastly experimental light cruiser Yuubari. Due to this information the girls had decided to take them as their new names and because of them now being human-ship hybrids they were giving the designation of Kanmusu which literally meant Ship Girls.

It wasn't long before they proved themselves in battle against the Abyssals as whilst they were training a small group of I-class destroyers had appeared nearby and had engaged the group but it didn't take very long for most of them to be destroyed and the rest of them driven away, it was the first victory in the long battle against the Abyssals and as time passed the group know for the time being as ExFleet 1 had victory after victory against the Abyssals clearing out the area surrounding the lab.

With these victories as well as all of the data concerning the Kanmusu, such as the process of how they came to be, maintenance, repairs and sustenance had been collected and put in proper order. The whole team had sent the data to the JMSDF HQ, to which they responded by sending people down to confirm what had been written in the report.

Once they had been satisfied with everything, they immediately called the world's Navies into a press conference revealing to the world the kanmusu program, everyone thought that the Japanese had gone crazy that was until they showed the battle footage as well as the Kanmusu themselves, this silenced them and immediately they were on board with details about the program being sent out a few days later.

Navies all around the world had started to capture Abyssals to gain access to the cores with some success from conventional methods. Due to the research by each country and with data that they shared, they had found out that there was more success with the younger generation than the older, it still worked either way leading the Navies of the world to gain Kanmusu for themselves. The USA had the Yorktown Trio, Britain had HMS hood, Germany had Bismark and Prinz eugen, etc. each country was finally able to fight back against the Abyssals with varying degrees of success around the world.

Even though people could volunteer for their countries Kanmusu program not all people could travel to the testing center to see if they were viable, so the Navies decided to come up with portable core testing units placed in unmarked vehicles for safety reasons.

And thus the war against the Abyssals had final turned in humanity's favour, but they still had a long way to go before they could finally take back the seas from the current inhabitants.

Unknown Location

A certain silver haired boy, had just gotten out of bed unwise to the fate that was to befall him, all it would take is a blue core, a whole lot of luck and an unexpected change that will undoubtedly be a shock to everyone especially to him.