The Six Guns

After an incident called the Naris Catastrophe, the world was brought down to it's knees. With humanity on the verge of extinction, a hero rose up and stopped the beast named Naris in it's tracks. Though the hero was successful in stopping the beast, the whole world suffered extreme damage. Shortly after the beast fell, the hero whom defeated the beast vanished. However, a new found source of energy called Endoindustria seeped into the world during the catastrophe. With this energy, humans began to wield magic and use this energy to replace modern guns and explosives. It took over a century to rebuild the world and become stable again, but with the help of the newfound "Endo"; as it's popularly known; humanity rebuilt society and progressed science.
Now, the year is 2190. A group of outlaws called The Six Guns stand between the world and a tyrannical reign of the Mages Guild. A group known to be the strongest magic users in the world whom lead the government of a newly developed country called Omnia. With a man named Siran at the head, and all of the history lost between the Naris Catastrophe and the rebuilding process; who is really the bad guy?