Yoon Hoo shows up at school and taunts Yoo Jin. Which one will Yoo Jin choose? A performance with Stresemann or his friendship with S-Orchestra?

Yoo Jin is inspired by Yoon Hoo's performance. He gets on stage, determined to make his best performance. Nae Il doesn't show up at the after-party.

Kang Jae's lesson causes a fight between Nae Il and Yoo Jin. Both regret but find it hard to make up. A new poster says S-Orchestra will be disbanded.