Set in Medieval France during the Hundred Years War, Joan is the story of Emil, a young woman raised as a man by Baudricourt, the same man who took Joan of Arc under his wing. Guided by visions of La Pucelle (the name given to Joan by followers), Emil seeks to unite France under the divine rule of the King. Emil travels through many of the same landmark battlefields as Joan, and gains her own followers in the process. However, Emil is opposed by the dauphin Louis, a brute enforcer who fears no divine power and is making his own bid to rule the country