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. 
Thanks. I still need to practice 
the piano a bit more.
شكراً. ما زلتُ بحاجة للتمرّن
على عزف البيانو أكثر قليلاً
— Uau, que incrível! Adorei!
— Mandou bem, professor!
Спасибо! Мне тоже нужно будет
потренироваться.