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.
[Memory Case #7-XX7-XXX: ...]
Memory Contents:
Day 1X
"Upon feeding the little, naïve princess various types of poison, I discovered a terrifying secret being hidden by the Royal Family; it's that Princess Quintella possesses a Dark Soul Core.
"Although seeing a Soul Core with my own eyes is impossible, the experiments I did are the reason I came up with this conclusion. This also explains why the effectiveness and potency of the poisons mixed in honey candies barely warranted the use of antidotes I have on me; it's because even if their abdomen is pierced, anyone who possesses a Dark Soul Core will still survive for quite longer. In the same way, poisons were being naturally blended to their bodies as though it's being treated the same as blood."
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[Memory Case #7-X1X-XXX: ...]
Memory Contents:
Day 1X