Reincarnated With The Extraterrestrial System
On one fateful day, when everyone went on with their mundane lives, the Earth was found in the Dark Forest known as the universe, resulting in unknown extraterrestrial beings preying on the weak — the humanity. Grey, an intern, was then killed due to an alien invasion, only to find himself reincarnated in the mysterious world known as Magica. But wait... "I've become an alien?!" Integrated with a mysterious entity known as the Extraterrestrial System, follow Grey's journey as he begins to seek the mysteries of the world while gradually, slowly, but surely building his Alien Empire despite being surrounded by powerful existences such as Heroes, Demon Lords, and other magically powerful beings.
Uncanny Valley
[Authority of the Undefined God]
"Uncanny Valley."
In the ancient history of humanity, this pertains to the phenomenon of encountering 'something' almost, but not quite human. It is something familiar yet strange, leading to discomfort, an eerie or unsettling sensation that even develops into 'fear' of the unknown, the oldest emotion of humankind.
This was its 'meaning' in the modern world of the now-ruined world called Earth.
In this World of Magica, however, though it was closely similar, it's an 'authority' of the mysterious entity only known as the [Undefined God] that allows its possessor to become something that's not of this dimension; something that the person might know but would not want to know.
Just as the peculiarly structured saying goes:
"Gods fear what cannot understand."
What more if they are not a god?