Nunnally of the Reboot: Angel of Zero

God repays his debts, but that doesn't mean he can't have fun with it! Instead of sending Lelouch back to the beginning, he sends Nunnally back even further, with a few gifts. Ladies and Gentlemen, Numbers and Britannians of all ages, I give you Nunnally Vi Britannia, the Angel of Zero! May Lord Zero have mercy on your souls, for she won't! Pairings undecided, possibly Harem.