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.
We should check
to see that Kaoru-san is okay.
ينبغي أن نتفقّد ما إن كانت كاورو-سان بخير
Wir sollten nachschauen,
ob es Kaoru-san gut geht.
Deberíamos comprobar si Kaoru está bien.
Deberíamos comprobar si Kaoru está bien.
Assurons-nous
que Kaoru est hors de danger.
Sarà meglio controllare 
che Kaoru-san stia bene.
Vamos conferir e ver se a Kaoru está bem.
Нужно проверить, как там Каору.