Togainu no Chi takes place in Toshima, a city formerly known as Tokyo, after a devastating third world war. The city is now controlled by Vischio, an organization that oversees the Igura battle games, where contestants fight and are 'bathed' in each other's blood to earn a chance to compete against Il-re, the tournament's champion. Akira, a skilled Bl@ster player, is accused of murder and must turn to Igura to clear his name, with help from a mysterious woman named Emma.