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. 
The piano?
البيانو؟
Ein Klavier?
¿Un piano?
¿Un piano?
Du piano ?
Un pianoforte?
O piano?
Пианино?