Many years ago, In order to protect humankind from the extinction, humankind created Einjard from a very advanced nano-tech. This tech was able to created a bio-mecha capable to halt the mysterious beings the humanity nemesis.
Now, humanity has lose its places above the ground, and being forced to hide themselves so They could survive.
"For the loved of mother Earth"
Humanity once again rise to fent off those creatures and trying to reclaim the earth.
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Warning (18+) Gore and explicit content.