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?

In lyrical switches between the present and the past, Taeko contemplates the arc of her life, and wonders if she has been true to the dreams of her childhood self.

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.