Now, I can't talk about every single monster in Rintusa. That would take forever. I'll just talk about the concept of monsters.

Monster is the name given to evil beasts. Either they were servants of the Dark Goddess(therefore, they were created to be evil), or corrupted by the "water" from the Black River. The Black River was said to be created by the Dark Goddess, Linna, right before she was banished from Rintusa into the gap between the dimensions. The Black River is literally black in color, and is not filled with water. Instead, it is filled with a strange substance that is liquid when cold, and solid when warm. Basically, it defies logic. When injested, and brought into the body (which everyone knows to be quite warm no matter what kind of creature you are), the strange liquid solidifies into black crystals that appear on the creature's skin. The black gems release corrupted mana; very powerful, but uncontrolable power. Any creature that comes into contact with corrupted mana goes beserk. Their concsience is clouded over, and all they want to do is attack anything that comes near them. Basically, becoming a mindless monster.

Monsters like to build nests in the once holy lands that are now called dungeons. Very few are no longer evil. Of course, Summoners and Tamers, the ones with the ability to control monsters, can keep monsters under control once they are tamed. Even the ones that injested water from the Black River. The corrupted mana is surpressed as a result of taming.

And that's basically it. I think I should just draw a map so everyone knows where everything is... That's my next project then I guess...