One morning, Yuma heads to school, and while talking to his friends, time stops. He sees three suns shining in the sky. Together with Astral, they both shiver from a fear they do not understand, causing Yuma to run off to find out what possibly could have happened. At that time, Kite, using Dr. Faker's technology, retraces Astral's memories and invites Yuma to the World Duel Carnival.
