It is a bit ambiguous in this case.
We found unfinished non-core content:
Code Geass: Fukkatsu no Lelouch (Alternative Version)
Here you have all the anime relations we detected ordered by release date, so you can see the reason for this status in context and also use it as watching order.
The mangas and the non-core contents are excluded by default, but you can enable them by clicking the buttons below:
Anime - Base
Release date: October 06, 2006
Anime - Sequel
Release date: April 06, 2008
In a world where the powerful Britannian Empire has conquered Japan, now known as Area 11, tensions are high between the occupiers and the resistant Japanese people.
Lelouch Lamperouge, a Britannian student living in Area 11, unexpectedly gains a mysterious power called Geass, granted to him by a strange girl named C.C.
This power gives him the ability to command absolute obedience, and Lelouch, fueled by a desire for revenge against Britannia, takes on the identity of Zero.
As Zero, he leads a rebellion against the Empire, aiming to overthrow their rule and fight for a better future. The story follows Lelouch's dangerous path as he balances his dual life and wages war against a formidable enemy, navigating complex political and personal conflicts.