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.
Human,
،أيّها الإنسان
Mensch …
Humanos,
Humanos,
Toi, l’humaine.
Umana,
Humana,
Человек,