Ginta has often dreamed of traveling to a fairy-tale land, but when a gate to the World of MAR appears before him, he realizes it's the start of a spectacular adventure.

On his journey, Ginta meets Jack and his mother, whose garden has been periodically terrorized by werewolf brothers, the "Rogelu Brothers". Upon learning this, Ginta decides to take action against these vegetarian werewolves...

Ginta and Jack arrive at Pazu Town on their journey in search of the ARM that could send Ginta back to his world. Can they find the Dimension ARM that Ginta once used, in this town that's reputed to have everything?

A mysterious boy named Alviss suddenly appears before Ginta and company. He claims to be the very person who summoned Ginta to the World of MAR. What is his true identity? Who and what are the "Chess Pieces" he speaks of?

Ginta learns that Chess Pieces are much stronger than expected! Just when all hope seems lost, help appears from an unexpected source.

While Ginta and the others train in another dimension, "Chess Pieces" finally begin their advance to take over the World of MAR! Is there any hope for the World of MAR or will it be checkmated by Chess Pieces' immense force?

Ian, one of the Chess Pieces, attacks Alan who cannot fight back while his Dimension ARM is activated! With Six months of intense training complete, Ginta returns ready to battle the Chess Pieces! Will Ginta's training help him beat Ian?

The battle between Ginta and Girom has begun! The Chess Piece Girom, a member of the Bishop Class, underestimates Ginta, but soon learns from his mistake when Babbo turns into the most amazing weapon yet!