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...
This always happens when 
Sue-chan runs around a lot.
.هذا دائمًا يحدث عندما تركض كثيرًا
Das passiert immer,
wenn Sue zu viel läuft.
Siempre pasa
cuando Sue-chan corre mucho.
Siempre pasa
cuando Sue-chan corre mucho.
Quand elle court beaucoup,
ça lui arrive souvent.
Succede sempre così
quando Sue-chan si agita troppo.
Isso sempre acontece
quando a Sue-chan corre demais.
Так всегда бывает, 
если Суэ много бегает.