Kaoru, a friend from the piano class Ruli once attended, has gone missing. While searching for her, Ruli and the gang find a strange dent and her shoes. And as they continue their search, Hiro is suddenly asked a mysterious riddle.
And this world!
!وهذا العالم
Und diese Welt gleich mit!
¡Protegeré este mundo!
¡Protegeré este mundo!
… et ce monde aussi !
E questo mondo!
E este mundo!
И этот мир!