Onsen Ako Final 720 uncen no sound

When sensei reached lv.50 with Onsen Ako, the last event story has been unlocked. It happened on the last day of the Hotspring holiday event. The boy has introduced his new friend to his sensei, this was the last request he made for her. After many events occurred, turns out the other sensei is his senior and also his bullier, the higher authentication Sensei. Everything once again drowns to silence. Maybe he will try to save his student from evil sensei, or let it be.