Principal Kuma Kocho has sent the IChu on a summer vacation as a present. Each of them set out to make the most of their vacation on a private beach reserved just for them, but Mutsuki seems unhappy somehow. Then, one by one, people start going missing... The IChu that are left find a mansion deep in the forest and head inside to search for their friends.
That's what they call the sounds 
that you hear when ghosts appears.
.هكذا يسمّون الأصوات التي تسمع عند ظهور الأشباح
So werden die Geräusche beschrieben,
die man hört, wenn ein Geist auftaucht.
Son los sonidos
de cuando aparecen fantasmas.
Son los sonidos
de cuando aparecen fantasmas.
C’est le son qu’on entendrait
avant de voir un fantôme.
Sapete, quelli che fanno i fantasmi quando si manifestano.
Dizem que é o som de quando
um fantasma vai aparecer.
Говорят, такие звуки
сопровождают появление призраков.