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.
Stone monument.
نُصب حجري
Ja, ein Steinmonument.
Monolitos de piedra.
Monolitos de piedra.
C’est une stèle.
Un monumento di pietra.
Um monumento de pedra.
Каменный памятник.