 With his new power, Lelouch begins his rebellion against the Britannian Empire, starting by killing his half-brother, Clovis la Britannia, after extracting information about the murder of his mother, Marianne.He takes up the identity of Zero and later forms the Order of the Black Knights, becoming a revolutionary and gaining popular support amongst the people.The turning point in his rebellion comes when his half-sister, Euphemia li Britannia, declares the region under Mount Fuji the Special Administrative Zone of Japan, giving the Japanese people their name and country back, albeit in a much smaller area.