Code Geass: Naoto of the Revenge

The 99th Emperor, Lelouch vi Britannia, reigned peacefully and justly for 15 years before he was executed by his succesor Schneizel. 7 years later, Naoto Stadtfeld (the hidden son of Emperor Lelouch and Kallen) decides it's time to fight back with his younger siblings, some friends who have as much reason to hate Schneizel as him, and the power of Geass