It has been two years since the world has changed. After the initial shock of the monsters, the powers, and everything the new world has to offer the humans did what they were best at, they adapted to the situation.
After the humans gained their new supernatural powers, the mercenary system quickly changed after a few months and it turned into the hunter system. The monsters of the new world had a lot of materials that help in making weapons, armor, buildings, and other things. In fact, they were a lot of new elements that appeared which never existed in the old world.
