Below, Tetsu and Asaka ward off a swarm of Reversed fighters. Far above, a climactic rooftop battle is taking place between the Reversed Kai and Ren as Aichi is forced to stand on the sidelines. Can Ren save the world? Or does that even matter to him while he`s fighting his former best friend and greatest rival?

Aichi is the only one who can keep the evil Takuto from attaining the end of the world... and it all comes down to a Cardfight! But now Aichi knows that if he wins, Kourin will lose everything...