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.
I can crash into the wall
without breaking.
يمكنني الاصطدام بالجدار دون أن أتحطّم
Ich kann gegen eine Wand prallen,
ohne zu bersten.
Puedo chocar contra un muro
sin romperme.
Puedo chocar contra un muro
sin romperme.
Je peux frapper un mur
sans me briser.
Sbatto contro i muri senza rompermi.
Eu posso bater numa parede sem quebrar.
Могу врезаться в стену, не разбившись.