Sumireko looks after Oto while Adashino is away. They go to Oto's school where Sumireko revels in the joys of youth. She and Oto run into Uname and spend the evening with her. But their peace is short-lived as the shadow of a new Curiosity draws near.
No matter what it takes, 
I will return you to your world.
.سأعيدك إلى عالمك مهما كلّف الأمر
ich bringe dich in die alte Welt zurück,
koste es, was es wolle.
pase lo que pase,
te devolveré a nuestro mundo.
pase lo que pase,
te devolveré a nuestro mundo.
Non importa quanto ci vorrà,
ti farò ritornare nel tuo mondo, Oto.
Não importa o que aconteça,
vou devolvê-la ao seu mundo.
Я обязательно помогу тебе
вернуться в родной мир.