Long ago, when there were still many great enchanters and enchantresses, that is, when magic still flooded the land, that is when men and monsters lived together in harmony, each ruling a part of the earth.
Humans were made from solid matters, in this case, water. And therefore their ability to control magical particles was much, much weaker than monsters', for the reason that they were entirely made out of magical particles.
For centuries the humans were fearful that the monsters would one day attack and wipe out their entire existence with their dominant magic. Eventually, the humans attacked. Despite the fact that the monsters were strong magic users, the humans were victorious after a long battle, due to the incredible power of their souls.
The two most powerful mages locked the monsters underground with what was called the barrier. It was a great magical barricade, which prevented monsters from going outside and humans going inside. The barrie