Natsuki's life experiences a big shift after becoming a teacher and starting a salvaging service. Rumors of a school lit with electricity attracts new students, and activities around the school regain a sense of liveliness. 
I'm not sure.
لستُ متأكّداً
Ich weiß es nicht.
Noch hab ich keine Beweise dafür.
No lo sé.
No lo sé.
J’en sais rien.
J’ai aucune véritable preuve.
Sì, ma non ne sono certo.
Não sei. Afinal, não tenho
nenhuma prova disso.
Не знаю.