Despite being so intertwined, conflict wasn't an uncommon sight amongst them.
A long time ago, a war broke out between them. And a vicious one, at that. Hundreds of lives were lost... mostly human lives.
But humans have a tendency to keep their best tools hidden until they're most needed.
6 great wizards were called to help. After the battling warriors pushed the monster forces into what we know today as Mount Ebott, they got to work; a powerful barrier was lifted, preventing anything from leaving the area we call "The Underground".
Thousands of years later, in the year 20XX...
A very curious human would fall into the Underground... creating a chain reaction that would either result in the freedom of monsterkind... or it's destruction. It'd all depend on this human's choices...
But that's just the beginning. Stories are'nt just a first chapter, you know?