On August 10th, 2010, a.t.b., the Holy Empire of Britannia overpowered Japanese forces and conquered the country with their robotic weapons, the Knightmare Frames, in less than a month. Japan lost its freedom and rights and was renamed Area 11, and the Japanese people are renamed "Elevens" and forced to survive in ghettos, while Britannians live in first-class settlements. Rebel elements persist, however, as pockets of Japanese organizations struggle against the Empire for the independence of Japan. After his father, the Emperor of Britannia, did nothing to pursue the terrorists who murdered his mother and crippled his sister, a young boy named Lelouch, vowed to destroy Britannia. Seven years later in Area 11, he encounters a mysterious girl who gives him the power of the Geass. With it, he finally has the power that he needs to defeat Britannia and fulfill his two wishes: to seek revenge for his mother and to construct a world in which his beloved sister can live happily.
(taken and edited from wikipedia)

Picture	Real Name	Description
	Lelouch Lamperouge	Seemingly an ordinary 17-year-old student at the Ashford Academy, Lelouch Lamperouge, also called Lulu by his friends, is in fact the son of the Emperor of Britannia and the late Empress Marianne and a member of the Britannia Imperial Family. His real name is Lelouch Vi Britannia
	Suzaku Kururugi	Lelouch's childhood friend and son of Japan's last prime minister, Genbu Kururugi. For reasons unknown, Suzaku's existence was kept a secret from the public until after the war. After Britannia's invasion of Japan, Suzaku joins the Britannia Army and becomes an Honorary Britannian, and later, the pilot of the Lancelot, as a member of its R&D Division.
	C.C.	A mysterious green-haired girl who bestows the power of Geass upon Lelouch under the condition that he would grant her greatest wish. She passively oversees Lelouch's missions to ensure that he does not die. Those abilities caught the interest of Britannia and she was imprisoned as a part of Britannia's experimentation in the past.