We have a level system in place for mankind.

[At the moment, a level system was introduced on this planet] The moment

its voice resonated with the heads of all mankind, the world changed. A monster called

an alien beast appeared, and one who defeated it and level it up, one who acquires an alien called skill. In order to survive in a world where

civilization has collapsed and changed, the protagonist defeats a different beast and acquires powerful skills.

Posts are irregular.