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.
What's taking them so long?
ما الّذي يؤخّرهم؟
Was brauchen die so lange?
¿Por qué tardan tanto?
¿Por qué tardan tanto?
Ils en prennent, du temps !
Ci stanno mettendo una vita!
Por que eles estão demorando?
Где же мальчишки?