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.
Don't damage the pyramid!
!لا تُلحِقوا ضرراً بالهرم
¡No dañen la pirámide!
¡No dañéis la pirámide!
Touche pas à la pyramide !
Non danneggiate la piramide!
Não danifique a pirâmide!
Не заденьте пирамиду!