No.10785276 ViewReplyOriginalReport
I've finally figured it out! There never was a Nunally. It was always Rollo, but he was raised as a girl on the emperors orders. During the showdown between Lelouch and Suzaku when they were to shoot each other he screamed "Hey! I'm a guy!". Both went "Wut!? OH SHI-!" and forgot about their fight as despair took hold of them.

See? Easy enough.