Episode Title:
Eternal Rivals!.
Episode Description:
Kyoya Gaen's plan activates during the final match of the Gaen Cup. A giant monster is seen in Darkness Dragon World's Gate that appeared in the sky above the Fighting Stage. The crowd becomes noisy, and at that moment, Tasuku tries to use his Disaster Force to destroy the monster, but it fails because of a program in his dark core so he cannot hurt any darkness dragon monsters. Then in Gao finally uses Future Force and now he looks like the sun fighter and he uses a spell card and sends the monster back to its world. Finally Kyoya's ambitions are made clear. What did the Dark Core's power invite to the world?
