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. 
Huh? What is?
ماذا؟ ما الأمر؟
Hä? Was denn?
¿Qué cosa?
¿El qué?
Hein ? Quoi donc ?
Eh? Cosa?
Oi? O quê?
А? Например?