In a certain home from Northeast of Orario, there live the lost and soon to be forgotten legends. This is the home of both Zeus and Hera Familia who were now only few of them. Even though there are few of them, and they disbanded their Familia, one of them wants to be a Hero while the other wants to get revenge from a certain First-Class Adventurer.
Those two where Bell Cranel who idolizes Heroes from his grandpa's stories, and the latter was Silver Sterling who was doing his all to get stronger and get revenge for his Familia. Other than revenge, Silver wants to find Zard and Alfia as the two of them whose pride took the most blow upon defeat. Regrets of being defeated.
In a room hidden under that home, was a passage towards a room that is completely white except for the desk, chairs, and a door that seemingly existed out of nowhere.
Sitting at the chair behind the desk, was none other than Kane. On the other side, Silver was sitting on the chair that is directly facing Kane.
"I don't like this... My intuition tells me that you're going to throw me somewhere in the guise of mission or something like that." Silver said while staring warily at Kane.
Kane's grin slowly became wider and wider until he decided to talk after grinning for 5 seconds and Silver throwing one of his pair of slippers at Kane's stupid grin. Now, equipping a serious face and atmosphere, Kane started to talk.
"I am here to help you get stronger while also fulfilling any missions I give you. Don't worry, you're not alone in the future, but not right now. I've decided to create a Dimensional Organization to protect the world's I copied from Evil Gods and their envoys, but I'll call them errand boys. They will try to change the plot, forcing the world to destroy itself, and then destroy more. The more negative feelings they get, the more energy they will get to entirely defeat me using that energy. Of course, I'll be upping my training as well and get stronger while you go and jeopardise their plan so I can get stronger without any delay. Also, these Evil Gods thought they could just defeat me, but they haven't even managed to break the barrier I placed so they can only send souls and reincarnate them in specific worlds." Kane explained and waited for Silver's response.
"... How many worlds are there in your domain?"
"There are 16 of them, the 1st being this world and the 13th being a cruel world going by the title of 'Attack on Titan'."
"Can you tell me all the world's you've copied?"
"Alright, here are the worlds: 1st world, DanMachi; 2nd World, Lyndbaum; 3rd World, 13th Fantasy; 4th World, Nasuverse; 5th World, Earthland; 6th World, Mushoku Tensei; 7th World, Elibe; 8th World, Demon Slayer; 9th World, Norn9; 10th World, Clover; 11th World, Akashic Records; 12th World, Isekai Smartphone; 13th World, Attack on Titan; 14th World, Useless Goddess; 15th World, Remnant; and the 16th World, Numbers. That's all of them. And you're lucky that-" before Kane could continue, Silver cut him off.
"I'm lucky because 'Nasuverse', 'Fairy Tail', 'Black Clover', and 'Akashic Records of the Bastard Magic Instructor' are one of the worlds you have which mainly uses Magic, right?"
"Right." Kane sipped a coffee that came out of nowhere, "Now, would you like to protect these worlds as their Guardian? It will be like me, a God, while you are an Archangel."
Silver argued, "Nope, I'm pretty sure it will be a Nephilim instead."
"Whatever! So, do you agree?" Kane raised his hand, waiting for a handshake for the deal to be sealed.
"As long as I get to do what I want to do and everything will be done in my way."
"Fine! Anything other than killing these invading pests, you can do what you like."
"Anyway, I'll train you inside a Time Chamber where you will train for two days inside while only an hour have passed outside since we can't have them notice that you suddenly grew taller in an instant. You will train like this for a while year at which you'll be physically 8 years old. Also, Ouranos wouldn't risk you on going in the Dungeon so I'll be the one working first until you turn 10, which is 2 years from now own." Kane said as he stood up and walked to the side.
There, a door appeared.
"Let's start, shall we?" Kane asked as they started their training.
Silver nodded and followed him to the door and closed it.
From here, Silver got stronger every each day, twice faster since he spends two days inside while he can have some time to relax after training. However, the training was so heavy that he could feel his muscles twitching in pain even after he rested for more than 12 hours.
While Silver was training his body, he would never forget to train his magic, of course. As a training, he would always use elements and also to further improve mana manipulation. He also decided to train in manipulating natural mana that could allow him to use the true nature of lightning at its full potential and power.
Of course, all of these happened in two years of training.
He also learned a lot of ki techniques that shouldn't be used in this world or he might blow up the whole village in one blast so he could only master those technique in the Time Chamber.
Since the Time Chamber doesn't have increased gravity, his mastery over gravity magic became better and better by using it on himself. Of course, that chamber's climate was harsher so his body adapted to the climate. From burning heat to freezing breeze, he managed to keep training without going unconscious, albeit he almost fell unconscious a few times before if not for him being able to adapt quicker despite being a quarter Saiyan.
While training, he never received any mission in the meantime as it was just what Kane had predicted. Even though Kane could just blow them up, with those Evil Gods being close to his territory, he couldn't or he would blow up the supposed to be backup version of worlds which are also a key to enter the Prime Earth, the world where every fictional world came from. It is where gods cannot enter but they can interfere as little as making a person get tempted to **** an unconscious woman he just saved.
The reason why they want to enter Prime Earth was none other than the ability of that world to create another world. An example of Overpowered Worlds are 'Dragon Ball Super' and 'Reincarnated as a Slime' at which people debates which character is stronger, Goku or Rimuru?
As such, when these kinds of worlds were created, they will be exactly what they are written as, and they could amass a huge and strong army to defeat the strongest factors and concepts of every world. They are: Dream, Reality, Fate, Creation, and Destruction.
Dream would collect imagination of a person and compile it while also giving the said person a motivation to write more or make more.
Reality would make dreams come true, making it real while not being true. How? The world is real, but it doesn't exist as true in Prime Earth.
Fate would guide the creator of a certain story to decide what their fate was based on what the creator wants for the ending will be, be it a sad ending, tragic, happy, and many more.
Creation would create and solidify the world created by Reality to make it True in physical form. It will also create the characters and their characteristics.
And Destruction would help in expanding the world, making it limitless by destroying the boundary, allowing different types of worlds to be created.
These 5 are the strongest out of all concept, with elements just right below them. No matter how strong Light or Darkness is, it all ends up what the Fate decided, what the Reality realized, and how the Dream wants to shape it.
These were what Silver learned by listening from Kane...and from reading his books.
Soon, two years have passed, and Silver was now 10 years old. Of course, he's also waiting patiently to find his rival. After all, what is the use of getting stronger if you don't have a rival? He's 6 years old 2 years ago, but by training in Time Chamber, which technically made him grow twice than the timeframe outside the Time Chamber, making him physically 10.
At last, after two years have passed, he finally got a mission to do as he's stronger now and rivals the strength of that a Level 3 have with S on all status from Level 1 to 3. As his first mission, he will make it successful no matter what.
He's now 8 years away from the canon and he knows that a year later, he would soon face his uncle and sister. Since Zard is old, he will now call him uncle.
"Becareful on your journey!" Meteria said as she base them farewell.
Silver didn't spoke, but he raised both of his arms to the side, said a password, and clenched his fist.. On his forearms, two insignia seemingly appeared out of nowhere, and those two insignia where both Hera's Emblem on his right hand and Zeus' Emblem on his left hand.