Japan has been invaded and dominated by the "Holy Britannian Empire," a superpower that dominates one-third of the world, and Japan has been renamed "Area 11". The Japanese, Elevens, have been stripped of their rights, freedom, and name. Lelouch and Rolo are ruling a certain class of Britannian, while Suzaku is a Japanese who chose to live as a "Honorary Britannian" and joined the Britannian troops. The "Black Knights," the anti-Britannian forces in "Area 11", began the "Black Rebellion," a War of Independence. Zero is a mysterious person and the leader of the "Black Knights" who suddenly disappears. The disappearance of Zero caused the defeat of the Black Knights and many casualties. The "Black Rebellion" that had an huge impact on "Holy Britannia Empire" and "Area 11" was erased from Lel