The title character of the manhwa, Ares, is the apprentice of Kiron, the famous Master Swordsman of Chronos. His birth name is Sebastion, but he suffered amnesia after jumping off of a cliff to escape the assassin Alamoot "The Quick". After the now retired and wandering Kiron saved him and took him as an apprentice Sebastion gave himself the name Ares, the name of the Greek God of war. After 6 years of training, Kirberos, the Red-Eyed Swordsman, tracked down Kiron and killed him to collect his sword. Ares lost his right eye to Kirberos during this fight and vowed vengeance.
Ares is light-hearted and friendly in normal situations. He is goofy, cracks jokes, and behaves as if he is simple-minded. For example, he joins Temple Mercenaries because they provide meals for their members.
Although he is only 18 years old, Ares is deadly in battle. As expected of Kiron's apprentice, few can stand against his fighting ability. He fights with a sword, but he will eliminate weaker opponents with only kicks or elbow strikes. His swordplay and fighting style incorporate quick, hard strikes and acrobatic maneuvers to both evade enemy attacks and enhance the momentum of his own. He makes good use of his environment—launching off walls, dropping chandeliers on enemies, taking swords from fallen soldiers if his own breaks. Temple Mercenaries gave him B-Rank status after his first skirmish. He and his friends Mikael, Baroona, and Gohue belong to the Temple Mercenaries' 4th Regiment, 2nd Squadron, Troop 3.