自分を「黒い剣士」と呼ぶ男、ガスは、彼が孤独な旅で過去を振り返ることがあります - 彼がmerc兵グループのメンバーとして戦った時代。At that time, he followed a man named Griffith. The ambitious, cruel and wise leader led them to fight all the way and step into the palace of royal power. However, fate is like a surging tide, pushing them to a turning point that completely changes their lives. The glory and blood of the past are now only scars and irreversible prices engraved in the depths of the soul.