Unknown to all, the world suddenly mutated and humans awakened to become superhumans who become heroes to save the world against mutated monsters.
Not just a majority of humans who survived the mutation awakened the ability to wield superpowers. A number of the other side of humans didn't, and were subjected to shame and were cast aside.
Having experienced shame and the life of the poor, those cast aside disappeared and headed to the forbidden zone and were never seen again.
With no power, they were secretly forced outside and woke up the next morning in the forbidden zone.
This they bared their fangs against those arrogant superhumans called heroes and began to transform the forbidden zone into a
Large bio laboratory that creates new and stronger monsters.
They were still alive thanks to you and your team of extraordinary monsters, humans who awakened the power to transform into monsters.
Unknown to them, and unknown to you. They were the instigator of the mutation, the one that started it, monsters from another dimension that stayed in this world for a long time and grew bored and changed the world.
But you don't have time for this, as you assisted the no-superpowers to founding an organization, an organization that creates monsters and turns them into catastrophe and disasters.
Your goal, everyone's goal is to overthrow the superpowered and heroes and let monsters rule the world, humans as the masters, monsters as the servants.
Together, many monsters were born, all mobile fortresses were monsters and as transports at the same time.
In the era of the mutation, the machine fell behind, only the flesh survived.
From the beginning the monsters sent against the heroes are weak and just numbers up to millions, only taking over one city before being wiped out by one hero, later the skies were painted red from the blood of the superpower as mobile fortresses were sent and prototype armies of ultimate upgraded monsters.