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.
As twins, maybe you have a mysterious 
ability to sense each other.
كتوأم، قد تملكان قدرة غامضة على الشعور ببعضكما البعض، صحيح؟
Weil ihr Zwillinge seid,
Quizás los gemelos
tengan un poder especial
Quizás los gemelos
tengan un poder especial
Les jumeaux ont peut-être
l’étrange capacité
Essendo gemelli, avete la capacità misteriosa 
di percepirvi l'un l'altro, vero?
Gêmeos talvez tenham um poder misterioso de
conseguir sentir a presença um do outro, não é?
Видимо, у близнецов есть загадочная
способность ощущать друг друга.