Code Geass by Majiko!

Lelouch of the Rebellion

In a world where the Holy Britannian Empire has conquered Japan and renamed it Area 11, a young exiled prince named Lelouch Lamperouge seeks to overthrow the oppressive regime. Gifted with the mysterious power of Geass, which allows him to command anyone to obey his orders, Lelouch adopts the persona of Zero, a masked vigilante. As he orchestrates a rebellion against Britannia, Lelouch navigates a complex web of alliances, betrayals, and moral dilemmas, all while grappling with the consequences of his actions and the true cost of power.