Norihiko Sudo

Appearing before Pikachu and friends is the keyring Pokemon, Klefki. Inserting a mysteriously shaped key into the keyhole floating in the air, a very mysterious portal appears! Klefki has the key to go to various worlds. What kind of world will the key that Pikachu holds lead to?

A young boy and a girl with a magic crystal must race against pirates and foreign agents in a search for a legendary floating castle.