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.
Standing on tiptoe,
 into the night I'll Fly High
الوقوف على أطراف قدميّ
 سأطير عاليًا في سماء الليل
Ich stelle mich auf die Zehenspitzen
und fliege hoch hinaus in die Nacht.
In punta di piedi, nella notte, I'll Fly High
Levantando, na ponta dos
pés na noite, voos altos
Встав на цыпочки,
взмываю я навстречу ночи.