Suzaku and Lelouch wake up on an island with no memory of what happened to them after the Avalon's appearance. But Lelouch has more to worry about when Princess Euphemia reveals she knows Zero's identity.

Instead of getting time to work on his coup d'état, Lelouch is stuck working the school festival with the student council. Things get chaotic when the event attracts everyone, including Britannian soldiers and Euphemia, who makes a startling announcement.