Nero

Nero is the loud and obnoxious partner of One. He is seen assisting him in his adventures to fight the Red-Eye Plague. He sometimes takes pleasure in One's relentlessness towards innocent civilians, often laughing at the atrocities they both commit. He portrays himself as an expert marksman. He carries two crossbows and a double-barrel crossbow used for powerful strike at large creatures. He is able to kill groups of soldiers from both close and long range. His elven blood also gives him immunity from the plague and the power to fight off dragons. (Source: drakengard.wikia)