Character that gender change:
William James Moriarty change to girl
Lelouch Vi Britannia change to girl.
Timeline:
-Lelouch stay at Japan 3 month before the war started.
-Lelouch will created Black Knight when she was 24 years old.
-Suzaku also was 24 years old
-Nunnally will be 22 years old.
-The rest character age won't change.
-Timeline set at lelouch 's era