THE WORLD he is in now is also called Earth, which he is familiar only with by name but there is a big difference between them. Because the Earth he was now living in was a thousand years later from the Earth that he knew of.
Then let's talk about the wide history of Earth, from the modern age where the Wren that currently hosting this body came from, to the new Earth era where the original owner of this body lives.
According to the memories of the original from his elementary history class, because of how fast the Earth changed—from the simple era of the modern age, Earth transformed to the high-tech era in which advanced technology became the biggest part of their daily life.
Because of this, humans have forgotten the purpose of technology. Because of the convenience that the advance technology brought to humans, it became more than a tool to improve life and meet the needs of people. Advance technology became part of human existence that once taken away, people may forget how to live.
This resulted in destruction when the group of intergalactic aliens invaded the Earth, and the humans became hopeless because the advance technology they were most proud of wasn't enough to defeat a single alien.
Not only do these aliens have more numbers, strength and power, but their technology is a hundred times more advance than that of humans. This left despair and desperation to the naive humans. They are not willing to die and perish yet.
This strong feeling of desperation to live became so unbearable that the long-forgotten culture and belief were resurrected. And the hope and faith for the gods and mythical beings resurrected—they believe that these forgotten high beings can save them from this impending death just by calling, praying, and even lightening an incense for them.
But who would have thought that this last resort that these people put their life with turned out to be their only hope that saved humanity?
Each country from all the regions and countries had its myth, folklore, and even tales that all the remaining humans can hopelessly prayed and called for. Even those small countries that were almost wiped out had successfully called on those gods and the like, saving them from almost getting annihilated. It was a scene of a great miracle, gods and goddesses coming down from heavens, gracing their mortal world with their power, helping them from only a single prayer.
Gods such as Zeus and Ares of Greek mythology, Odin and Thor of Norse mythology, the god of war Horus of Egyptian mythology, and even the monkey king of Chinese mythology appeared one by one, providing safety and protection from the alien invaders.
And with that, those despicable aliens were defeated. Unfortunately, before the remaining intergalactic invaders left the Earth, they secretly left an egg of a matured queen zerg—a destructive bug and the number one enemy of all intergalactic species.
This matured zerg is a bug-type insect that is very destructive. They might be small but once they attack in groups, anything can be eaten leaving nothing but air.
Aside from that, a matured queen zerg can quickly adapt to its environment and the hatch zerg from this queen zerg will also be the same. What more, because this zerg queen had been subjective to many experiments, it also evolve into an intelligent queen zerg.
So when this egg was thrown to the surface of Earth—unknown to everyone—it quickly find a host that it could use to lay its eggs. It fell into a dead animal and turned it into its vessel. Then it lays millions of eggs in that body.
For the eggs to hatch, they must stay in warm temperatures. So the zerg queen took each egg and planted it on any moving and alive object, animal, and even person.
While the zerg queen made its nest into that dead animal, the eggs that he planted in different places slowly mature and hatch. That's when the humans who thought that everything ended well, was left unprepared when another chaos happened.
This hatch zergs turned into flesh-eating zergs because of their queen. Following the order of their intellectual zerg queen, the zergs started eating their host and attacking other humans.
When the humans thought that they will perish surely this time, their heroes and protectors of the last attack came out once again and helped take down the zergs and their queen. With the help of these mythical creatures, the queen zerg was found and killed, and its control over the zergs was stopped.
Unfortunately, the humans fall into prey has long been dead, leaving those human body an empty living vessel. But what was shocking was how these empty hosts were still able to move like they were when the zerg was still in control.
It was because when the zerg queen died, those zergs living in a human vessel did not disappear after dying; instead, they melted and turned into a substance like mucus, which blended and infected the blood and other liquids within the body.
Like those popular zombies, these empty shells of living beings, whether they were humans or animals, became a new version of zombies who had a lot more strength, power, and agility. Although they were all brain-dead, it was still hard to kill these powerful zombies.
If they were still assisted by these mythological beings, they might have incinerated all of this, but they suddenly disappeared just after the success from the war with those intergalactic aliens. It was because the law of order finally intervened.
This law of order was the root of peace and order within the universe they are assigned. After all, there are more than one universe parallel to the one they are in. And each universe consists of different galaxy; beyond that, each galaxy have different worlds. The Milky Way Galaxy in which Earth as well as those intergalactic alien invaders came from was only one among the thousands in the universe. And if there's no law of order, what happened to Earth might happen to other worlds. There will be no balance in peace and chaos.
According to the law of order, these so-called myths and tales are so powerful that if they continue to interfere, the balance and order of the world will be ruined. So 'it' restrained these powerful heroes—they could no longer be in their physical bodies and could only connect to humans through one's consciousness.
But how can these beings let the world where they were created be ruined and destroy?
So once again, with all these beings helping, they created a system that has the same function as the zerg virus but is more powerful and controllable. All of their provided powers were scattered throughout the planet Earth and anyone with compatible physics had awakened a system within them.
Those who successfully awakened a system became a certain god's vessel—but unlike the zergs, this system did not take control of the body but only enabled the awakened to use a certain god's power and strength.
And in order for the law not to perceive this as unacceptable, these beings made sure that they only let these humans who have the system to inherit all of their abilities but they must start from scratch. In short, these humans must have leveled it up on their own.
With this, the humans can finally kill all the 'zombies' and start their new lives. This incident also became the start of the new era that humans have to live by for the next generations to come.
As stated in the law of order, the galaxy of which Earth is part of was fated to enter the intergalactic era. So it didn't take long before, after an alien invasion, the Earth encountered another intergalactic attack.
For the following years, because of the invasion of different intergalactic species, the humans of Earth, who once were the weakest species in the universe, slowly became one of the strongest with the assistance of the system provided by the mythical beings.
And the last attack that the humans had to conquer was the dungeon break that happened three hundred years ago. With the positive increase in the number of humans as well as the ninety-nine percent chance of everyone manifesting a god system, humans had become a powerful existence that it only took them a year before they conquered all the dungeons.
After that, these dungeons didn't disappear and from time to time, another dungeon would appear here and there, causing suspicion among the humans. Not long after, a vessel of Apollo, the god of prophecy and oracles of the Greeks, was given a revelation by the said god.
This vessel, which was now called the high priest—anyone who became a vessel of any god and goddesses that could give revelation, prophesy, oracles, and such—has stated about how these dungeons came from a different universal plane that the law of order had allowed to enter all the worlds within their universe.
That was how humans had known about the law of order and the billions and trillions of worlds within a hundred and thousands of universes out there. It made humans begin to understand that, because of these dungeons, those intergalactic aliens who tried to invade them had done so.
They wanted to help their world survive the dungeon break that was already perilous in their world. And all of those intergalactic species received a prophecy that Earth would become a powerful existence that could conquer the dungeons.
Even to the intergalactic people, it was natural to fear the strong and kill the weak. And what could they do but attack while the aborigines of Earth were still weak and unable to fight. Unfortunately for them, they didn't know that the source and provider of these future prodigies were the gods, goddesses, mythical creatures, and other beings that were solely made because of the historical religious beliefs that these weak humans had been worshiping.
That's when the humans realized just how powerful their faiths are and unbelievably manifested these powerful figures. After these, the humans decided to return to their roots, where they once again started to believe in their faith. Instead of focusing on advancing their technology, they made sure to advance more the power of their faith by practicing their old culture of worshiping gods through prayer and incense.
And that's how the new era of Earth was established. Genesis Era—the age in which Earth and humans evolve and become a powerful existence in intergalactic history.