There were many mysterious places on Earth that have always existed, with strange and enigmatic phenomena from ancient times to the present.
Before the era of the insect disaster, humans could set foot in these areas to explore their mysteries, but after the era of the insect disaster, all mysterious places quietly changed, generating an invisible force.
When the insect army swept across the Earth, they entered the mysterious places, only to be annihilated by the invisible force, resulting in a scene of mountains of corpses and seas of blood.
Humans were no different, any being entering was doomed to death.
Therefore, humans called these mysterious areas "Earth Restricted Areas".
However, humans soon discovered that the Earth Restricted Areas would change over time, and the invisible killing force would vanish, allowing humans or insects to enter them.
Not only that, but many treasures, never seen before, appeared in the Earth Restricted Areas.
