Hero of Medius
The exact history of this character is largely unknown. His/her name was only shown, not directly mentioned verbally, on the back of a book called "The Great War". Given how the text describes how the book includes the "legend of the hero, Valfa", he/she was likely the leader of the group of heroes who saved Medius.
Powers and AbilitiesEdit
As a key factor in ending the Great War on Medius, and as a legendary hero in general, he/she must have possessed tremendous skill and ability in his/her field of expertise; considering that the war included the presence of Angels and Demons and that the evil general that took part in the war was fought by the hero as well.