Sol Badguy is the main character and namesake of the Guilty Gear fighting game series. By initial appearance, he is an aloof bounty hunter and antihero who fights with an oddly rectangular sword called Fuuenken, or the Fireseal. He will rarely put much effort into his fights, a fact that angers Ky Kiske in particular. However, his brash and somewhat abrasive exterior conceals a genius and emotional depth. He has dedicated his life to the destruction of Gears, a race of magical bioweapons that plunged the world into a hundred-year war known as the Crusades. In particular, he shows a particular zeal to destroy their creator, an individual known only as "That Man".