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...
But we love-love the big onee-chan.
.ولكنّنا نحب أونيتشان الكبيرة
Aber wir haben
die Hime ganz doll lieb.
Pero queremos a la niña grande.
Pero queremos a la niña grande.
Mais on aime fort fort
la grande madame.
Ma noi vogliamo tanto bene alla sorellona-ona.
Mas a gente ama-ama a Onee-chan gigante.
Но мы взаправду любим сестрёнку Химе.