The curse of Tsukuyomi's Water of Youth hasn't finished with Sumireko yet. Meanwhile, Adashino's younger sister, Oto, picks up on the presence of a Curiosity at the school she attends. Sumireko poses as Oto's friend in order to infiltrate the school.
My little sister Oto attends 
Koone Girls' Academy,
.تدرس أختي الصغرى أوتو بأكاديمية كوني للفتيات
In der Koone-Mädchenschule,
auf die meine Schwester geht,
Mi hermana menor, Oto,
va a la Academia Femenina Koone.
Mi hermana menor, Oto,
va a la Academia Femenina Koone.
Il semblerait qu’à l’école d’Oto,
l’académie Kône,
Oto, la mia sorellina,
frequenta l'accademia femminile Koone.
Minha irmã mais nova, a Oto,
frequenta o Instituto Feminino Koone,
Моя младшая сестра
учится в женской гимназии Коонэ.