Himeno has a young cousin named Shino-chan. Manami, as well, has three young triplet sisters, and an even younger fourth sister. One day, Manami orders her triplet sisters to stay home and watch their youngest sister while she goes out. This leads the four youngest Mitama sisters to experience a truly mysterious phenomenon...
It's best to let kids grow 
up worry-free, I think.
من الأفضل ترك الأطفال
.ينمون بلا هموم، على ما أعتقد
Es mejor dejar que los niños
crezcan sin preocupaciones.
Es mejor dejar que los niños
crezcan sin preocupaciones.
Penso sia meglio lasciar crescere
i bambini senza preoccupazioni.
É melhor deixar as crianças crescerem
sem estresse, eu acho.
По-моему, лучше обеспечить им 
беззаботное детство.