Ichika and Futaro get locked in the storage shed. The others are concerned about their absence, but not necessarily for the same reasons.
You're quintuplets.
Ihr seid immerhin Schwestern.
Son quintillizas.
Sois quintillizas.
puisque vous êtes jumelles.
Del resto, siete gemelle.
São quíntuplas.
Вы ж близнецы.