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. 
Excuse me, sir.
المعذرة يا سينسي
Ähm, Entschuldigung?
Perdona, profesor.
Perdona, profesor.
Excusez-moi, professeur.
Mi scusi, professore.
Com licença, professor.
Извините, учитель…