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.
Diarbbitmon!
!دياربيتمون
Diarbbitmon!
Diarbbitmon!
Diarbbitmon!
Diarbbitmon.
Diarbbitmon!
Diarbbitmon!
Дирабитмон.