When the Holy Britannian Empire invaded the far eastern island nation of Japan one part of the Japanese Isles escaped destruction at the hands of the empire. That was Academy City, a city dedicated to scientific research and the development of esper powers. Now, seven years later, things are about to get interesting for both the empire and the city thanks to a certain prince.

Lelouch Lamperouge had been working on his plan to destroy Britannia for over seven years. He did not expect his plans to come crashing down the instant he opened a certain capsule in the Shinjuku Ghetto.