Unlike other novels where you have only MC being a super cheat, and recognized as the only one as such, in this story, the author readily admits that "Humans can turn into super men compared to Origin and Earth", thus, if the numbers are higher, then it doesn't matter if they are a baby with super high numbers, or a giant with low numbers, the numbers will take precedence (so a super fat person can be super fast, and a super muscular person can be weaker than a baby [You may ask "Then what's the deal with having muscles?", they actually do have improved strength for their levels from over training their bodies, and it's not like the system doesn't have its limitations]).
It's to the extent that a super high level person cannot be killed by a normal person, as in, even if the super high level person allows himself to get stabbed, the damage will be that low, or it just won't work, and that's part of their physics now.
This is a world where the concept of status is not only known and worked on, but it has high impact on society, and it's not something that only a "select few" can reach (you have some other novels where there are this random natives who, usually by some rare equipment or some rare ability, are able to reach inhuman levels of strength that completely highlights them as different from the rest of the population), because B Class Adventurers and above are already considered "Super Men" by other world standards (One time the author was asked where MC, as the Undead from Origin, would be in the Rank powers as a monster, and the answer was "Around Rank 8", so the Undead with 100M Mana and Death Magic could be easily dealt by a party of B Class Adventurers, or a single A Class Adventurer ), that is not to say that C Class are not strong, as they are half-way there already.
So, let's make a ridiculous practical example: if all the A Class and S Class Adventurers decided to, for some reason, take over the human Kingdoms/Empires through force to unite the whole Human Society, would it be realistically possible? As long as they can eat and so on, that's totally feasible, they would wipe out the armies, although maybe some Elite units could have equivalent power to them. There is also another problem in regards to the Gods, if for some reason they decide to interfere, the Gods can send their familiars to power up the defending side, thus, those numbered amount of Adventurers we called upon would face a hard attrition battle there.
The world created by these events was peaceful. The people believed in their gods, the Dragons Gods and True Giants were wise; there was plenty of wildlife in the mountains for them to eat without fighting over territory and there were bountiful blessings in the sea.
However, the peace was shattered by the appearance of the Demon King Guduranis from the abyss beyond the stars.
After descending upon Lambda, Guduranis began a war to take over the world using the evil gods that were his servants.
The Demon King’s tainted Mana gave birth to monsters such as Orcs and Goblins that had never existed in Lambda before, and the Demon King used them to fight the other gods.
Though the people of Lambda had polished their fighting skills for competition and hunting the wildlife that sustained them, they were thrown into chaos as they had never experienced a fight to the death and the gods were driven into a corner. The war-god Zantark, the dragon-emperor god Marduke, the Giant god Zerno and the others fought bravely with their followers and the genie Ricklent bestowed magic upon the humans and gave them commands, but they could not turn the tides of the battle. The beast-god Ganpaplio put up a good fight, but was eventually destroyed.
To fight the Demon King’s forces, Zuruwarn, the god of space and creation, summoned seven champions from another world.
The seven champions taught the people techniques for fighting, gave them the knowledge to make great weapons and fought bravely at the front lines themselves.
And so, through battle after battle, the Demon King was finally destroyed and sealed away; not even a single piece of his body remained. The evil gods that were his subordinates lost their powers; some were destroyed and others were sealed away into a death-like state.
However, the final result was difficult to call a victory.
The war-god Zantark was cursed by the evil gods and fell into darkness; Peria sank into the depths of the oceans and Shizarion returned to the wind. Botin was sealed deep within the earth while Ricklent and Zuruwan entered a deep sleep to regain their power.
Marduke was torn to pieces and Zerno’s heart was destroyed. Their followers’ powers weakened; the number of dragon gods grew fewer and the monster dragons increased in number*. The giants became monsters that worshiped evil gods.
Finally, there were only three champions left and the population of the people had decreased to the point that even if the Elves and the Dwarves joined the remaining humans, who had a considerable population before the conflict, they were barely able to maintain a single city.
The remaining population was not enough to sustain civilization and culture. Even after the Demon King was defeated, the surface of Lambda was overrun by monsters that had been corrupted by his Mana during the conflict with his forces, and there were Devil’s Nests all across the lands. The surviving monsters began to breed and multiply endlessly.