เรื่องย่อสามตอนสุดท้าย
Episode 11 "Welcome Back, Audition"
Thanks to Taki's proposal, the club's atmosphere has improved, and so the club members focus on their practice, no longer excluding Reina. That state of affairs relieves Kumiko, but one day, she happens to see Yuuko talking with Reina.
Episode 12 "My Euphonium"
It's nearly the day of the competition. Right at that time, Kumiko is told to play a different part's phrase, but it's difficult and she can't play it well. Without rest, Kumiko keeps practicing, and...
Episode 13 "Goodbye, Competition"
The amount of time to play in the concert is just twelve minutes. It seems like it will be over in an instant, but it seems like it will last an eternity... For the sake of those twelve minutes, the concert band members have stakes the springtime of their youth. Kitauji High School Concert Band's performance begins now.