Primordial World.
The cave where Cadil resided.
The place now.
Though it still looked much the same as it had at the beginning—utterly ordinary on the surface.
It truly seemed to be nothing more than a common cave out in the middle of nowhere.
The only feeling it gave anyone upon seeing it was a slight concern that venomous snakes, Black Bears, or something similar might crawl out from within.
It could not be called mysterious or concealed in the slightest.
In fact.
Even if some ignorant passerby really walked inside, passed through the gloomy tunnel more than twenty meters deep, and reached the depths of the cave.
They would generally find nothing that could be considered special.
They would only see some long-weathered bones carelessly strewn about inside the cave.
Other than that.
There was nothing.
Setting aside insects and such, there were not even any living animals.
But.
Behind that obstacle more than ten meters thick, which appeared to be nothing more than a single enormous boulder.
There was a special, tightly sealed passage made entirely of metal.
Its existence connected to a far more expansive internal space deep underground!
And that hidden place in the depths was Cadil's ultimate achievement after many years.
There.
Intelligent Machines with no autonomous intelligence but relatively rigid self-operating functions had long been put into practical use. Resembling giant metallic octopuses, they filled every corner of the place.
All kinds of drilling equipment and large facilities had likewise sprung up like bamboo shoots after the rain before the large industrial equipment Cadil had gone to great lengths to create in his early years. Like vital organs of this place, they were guarded in different areas.
If one possessed dark vision and stood at a high point here to look around, one would