Code Geass: Nightmare of Nunnally

Code Geass: Nightmare of Nunnally is a manga spinoff of Code Geass: Lelouch of the Rebellion. Even though the plot points are mostly the same, the story-line revolves around Nunnally, Alice and Nemo instead of Lelouch, Suzaku and C.C.. One of the key plot differences is that people can be born a wired, meaning that they have a latent Geass ability without forming a contract, though they can still gain an additional Geass ability through a contract. Lelouch's geass is different in this spin-off instead of absolute obedience, he has the power of invulnerability gained through a suit of black armor that resembles a more heavily padded version of his wardrobe as Zero in the original series.