Sol Badguy

Sol was once a scientist who transformed himself into the biological weapon known as a GEAR, going on to lead humanity to victory during the Holy War and cementing his place as a celebrated hero. Following the loss of his powers in a previous conflict, he now lives a secluded life in the countryside. Though rough-mannered and quick to avoid anything troublesome, he continues to serve as Sin's adoptive father and master in his own unconventional way, quietly watching over and training the young warrior.