The Kingdom of Gabrall is at war with a country they call "The Demonic Empire", and both countries have fought to a standstill.  Not because they are equally matched, but because Gabrall used all of its armies to defeet the one army sent to destroy them.  The King of Gabrall has decieded that the only way for them to survive is to assinate the "Demon King" and his generals before they can rallie a new army to atack Gabrall.  To keep his country happy with him he desided to call this assine a "Hero", and summoned all of the strongest fighters in the land.