Naomi Birkin is a young Britannian-Japanese woman and a childhood friend of Lelouch, Suzaku and Nunnally. Even though she was enjoying herself in Ashford Academy and living with her younger cousin, Naomi couldn't stand seeing Japan and the rest of the world suffering by Britannia's rule. When a masked man named Zero appears, Naomi's simple life has become far more interesting...
Rai wakes in a familiar world prior to the advent of Zero and his Black Knights, with no memories to orientate himself, feelings of the past echo in his mind as fate marches towards rebellion, tragedy and death. Guided by echos of memories and a chance encounter with Nonette Enneagram, Rai causes ripples in fate, those ripples become waves and history begins to shift course.