Kirberos is the Red-Eyed Swordsman. He is infamous for killing other swordsmen and collecting their swords. He killed the Master Swordsman Kiron after Kiron had gone blind and took the right eye of his young apprentice, Ares. Although he is of mixed blood, his eyes are a "purer" red than full-blooded Red-Eyes. He is younger brother to the captain of the Black Knights, but he refuses to acknowledge his "weak" older brother. Kirberos' fighting ability is so fearsome that none will claim bounty on him. The weapons of those he defeats he wears on his person and switches them out during battle.