Code Geass: Lelouch of the Rebellion

The Holy Empire of Britannia conquers Japan in 2010 using powerful humanoid weapons called Knightmare Frames. Japan loses its name and political identity, becoming Area 11, while resistance groups continue fighting for independence. Lelouch Lamperouge, an exiled Britannian prince living as a student, is drawn into the conflict when he encounters the mysterious C.C.. She grants him Geass, a power that gives him absolute dominance over another person. Armed with an ability capable of changing the balance of power, Lelouch sees a path toward his long-held goal of destroying Britannia from within.