(I don't own the rights to any of these characters I'm just a fan making a story, I will be using characters and things from other comic book franchise like Marvel comics, Image comics, WildStorm comics and The Boys as well as I may use the names of characters, backstories and things within this story)

(The Dheronian was a race that had a war with Krypton within the Earth One Universe in the comics)

Earth 7: Superman's Origins

There was once a peaceful world that was known as Krypton which was the home world for a technology advance race called the Kryptonian who were governed by the Ruling Council and their society was different from many other races in the Universe as unlike other races Kryptonian are not born through natural means instead they are created in the Birthing Matrix which was a chamber where Kryptonian's children are artificially created and they are raised in separate from their parents until they reach a certain age.

Krypton had always had a bad relationship with the Dheronian's who were from the world known as Dheron which was a nearby planet to Krypton and they have hated each other simply because of their various differences, such as Democracy vs Monarchy and how life should be lived which eventually led to a war between the two worlds.

The war between Krypton and Dheron lasted for many years with casualties between the two worlds were in the thousands which cause both the Ruling Council of Krypton and the monarchy of Dheron to finally call a end to the war however not everyone wanted the war to end because they wish to avenge their fallen friends and family like General Dru-Zod who was a distinguished soldier in the Kryptonian's Military Guild like almost every single other member from the well-known and respected House of Zod and he wanted to avenge all of the lives of the Kryptonian that had been killed by the Dheronian's during the war.

Dru-Zod believed that the current Ruling Council was weak and so that Krypton needed a stronger leadership to led Krypton into becoming a great galactic empire in the Universe which it was destined to be meaning making himself the Grand Regent of Krypton and Dru-Zod became even more certain of this when he had discovered that the Ruling Council had a secret weapon which they could have use to completely destroy the Dheronian's and won the war for Krypton at the very start of the war against the Dheronian's and their secret weapon was a creature known as Doomsday who possessed unimaginable power and bloodlust.

Many years ago on Krypton there was a civil war that was started by a rebel group calling itself Black Zero so the house's that were members of Krypton's Science Guild like the famous House of El work together to create a weapon to stop Black Zero which led to the creation of Doomsday to put a end to the civil war and protect Krypton. However their creation proved to be to violent to be controlled and to powerful to be destroyed so the Ruling council of Krypton at the time used a device which was created by Val-El call the Phantom Zone Projector which can send anyone or anything to the Phantom Zone an inter-dimensional realm outside the normal space/time continuum which would later become a prison where the Ruling Council would send the worse criminals making Doomsday it's first ever inmate.

The current Ruling Council was too afraid to unleash Doomsday from the Phantom Zone on to the Dheronian's fearing that what if they did free Doomsday but they wouldn't be able to send him back to the Phantom Zone and the creature may also end up destroying them as well. Dru-Zod gathered everyone who also share in his vision for a grand military government Krypton and they call themselves the Sword of Rao after their Sun-God Rao however the Ruling Council was able to stop to them thanks to the help from Jor-El who was the great grandson of Val-El, one of Krypton's greatest scientists and the former best friend of Dru-Zod.

Afterwards the Ruling Council sentenced Dru-Zod and most of his followers to the Phantom Zone but not before Dru-Zod vowed vengeance and he claimed that they have doomed Krypton as the war had left both Krypton and Dheron defences weakened and neither of them were unprepared when Brainiac came to their world's. Brainiac was a artificial intelligence machine originally from the Planet Colu called Computo and it was designed to gather date and study all forms of life however it went rogue and left the Planet Colu knowing that if it stay it's creator Vril Dox who created Computo by basing it from his own brain patterns and the other scientists would be able to destroy it and once it left Planet Colu it created itself a spaceship and a physical body which it had designed to look like it's creator Vril Dox and gave itself a new name Brainiac and afterwards Brainiac continue its original mission to gather knowledge which has led it to create a device that can struck cities are people so Brainiac could transportation the small orbs on its Skull Ship so Brainiac could continually study the lifeforms and exterminate them.

Brainiac choose Krypton first simply because it was a bit more weaker then Dheron because of the lost of Dru-Zod and his followers and when Brainiac arrive it chose one of Krypton's three greatest cities known as Kandor to be added to it's collation and sent it's drones to gather everyone who it thought was useful and those who it didn't were killed while Brainiac hack into every computer system of Krypton and downloaded all of it's knowledge. Once Brainiac was finish it then fired a blast from it's Skull Ship into the Planet's core triggering it's destruction like it has done to every other world it has come to as Brainiac wanted to make the knowledge that it had gathered only available to itself and Brainiac then travel to Dheron to repeat what it had just done.

However a few weeks before Krypton's destruction Jor-El had found out about Brainiac but when Jor-El try to warn the Ruling Council they simply ignored his pleas for evacuation and later expelled him from Krypton's Science Guild so with the little of restores that Jor-El had he was able build a small spaceship and on the day that Brainiac had arrive, Jor-El and his wife Lara Lor-Van sent their baby son Seg-El who was name after Jor-El's father and the first Kryptonian to be born through natural means after centuries to world known as Planet Earth. Jor-El had discovered the planet because years ago he had sent out a satellite into space for research and Seg-El would be able to blend in with the inhabitants of Earth who are call Human's as they look identical to Kryptonian and because Planet Earth had a yellow sun unlike Krypton which had a red sun there were side effects on Kryptonian's Physiology which were the yellow sun radiation granted Kryptonian's incredible powers.

Jor-El also made sure that Seg-El would know about his family's legacy by giving him a special Crystal which could transform into a large fortress that contained many of Kryptonian's technologies and a special orb which Jor-El had originally created for the Ruling Council back during the war against Dheron with it purpose being able to contain a large amount of data as the Ruling Council had intended to use it to copy all of Dheronian's knowledge to use against them but instead Jor-El had use it to copy all of Krypton's knowledge before Brainiac had downloaded it into itself.

However Seg-El wasn't going to be the only Kryptonian that is sent off Krypton before it's destruction as he had a older half brother Tal-Rho who was the son of Zeta-Rho and Lara Lor-Van, within Kryptonian culture people are genetic matched together however Lara and Zeta's marriage was a loveless but during the war against Dheron's Zeta was killed and Lara remarry to Jor-El who treated Tal like a son far better then Zeta did and Jor-El was able to build a spaceship for Tal and gave the same Crystal and orb as the one's that he gave to Seg-El however when Krypton exploded it caused Seg-El spaceship to be knock off course and causing him to go to a different world which was the planet Almerac where Seg-El would be found by a loving Almeracian family who would raise Seg-El and eventually he grew up and married the queen of Almerac Maxima and became the King of Almerac.

Meanwhile when Tal's spaceship reach Planet Earth it landed in the United Kingdom of Great Britain in a forest where he was founded by Robert and Claire Kingsley who were camping nearby and when they found Tal in his spaceship and they decided to adopt him and gave him the name of Taylor Kingsley him and they raised Taylor as their own and taught him their values. Taylor grew up happily thanks to him having good parents and great friends and Robert used his powers to help his family on their farm but only there as Robert had told Taylor that other people may be afraid of him because of his powers and the fact that he was a alien.

Tal traveled the world for a bit until he used the Crystal that he had found inside his spaceship which Jor-El had given him and he travel in the direction which the Crystal glowed which led him to a desert where he then use it to create a fortress of solitude and had it combine with the orb of knowledge as all forms of Kryptonian technology was capable of merging with any other forms of Kryptonian technology as well as even other technologies that isn't Kryptonian.

Tal eventually moved to the big city known as London where he would used his intellect and the knowledge of Kryptonian technology to start his own company called 'Galaxy Holdings'and it was also there in London where Tal became the superhero known as 'Superman' because of the symbol on Tal's Superman costume which was actually Kryptonian armor and it also had the symbol for the 'House of Rho' on the chest which looked like a 'S' inside a diamond shape shield that was slightly tiled however on Krypton it wasn't a 'S' instead it is the Kryptonian symbol for order.

Not to long after Tal met other people who also possesses super powers similar to his own like Orana of Themyscira who was known to the world as Wonder Woman, Jean-Paul Valley who was known as Batman, Carol Ferris who was known as Star Sapphire, August Heart who was known as The Flash, Orm Marius who was known as Aquaman, Jason Rusch who was known as Firestorm, Ma'alefa'ak who was known as Martian Manhunter, Shen Li-Men who was known as Hawkwoman and many other superheroes and together they became known to the world as 'The Justice Battalion'.

In DC Comics the Justice Battalion was a vigilante superhero team led by Magog on Earth 22

In the Superman and Lois TV Tal-Rho is the half brother of Superman and if you know his backstory then you know there are reasons why he's evil and as for his symbol it looks like a tiled S to him

In DC Comics Orana was a red-haired Amazon who challenges and defeat Diana for the title of Wonder Woman

In DC Comics Jean-Paul Valley is known as Azrael who became Batman after Bane broke Batman's

In DC Comics Carol Ferris is the Star Sapphire while on Earth 11 she's also known as Star Sapphire however in that universe the Star Sapphire Corps are like the Green Lantern Corps in the Prime Earth universe and that is how it is here

In DC Comics August Heart, Godspeed was a Central City Police Department detective and close friend to Barry Allen unlike in the Flash TV show

In DC Comics Orm is the half brother of Aquaman

In DC Comics Jason Rusch became one half of Firestorm after Ronnie Raymond's death however in this universe Jason received all of the powers by himself

In DC Comics Ma'alefa'ak is the evil twin brother of J'onn J'onzz

In DC Comics Shen Li-Men is the superhero known as Swift from the Wildstorm Universe and is a member of the Authority where she possesses the same super powers as Hawkgirl so i thought why not have it in one universe she's that world's Hawkwoman