Based on Episode 8 of Naeil's Cantabile/Tomorrow's Cantabile - A Kdrama based on a manga

Cha Yoo Jin may have been the epitome of arrogance, but deep down inside he only wants the best for the members of S Orchestra. They have been used to being labelled as the "left overs", but this new orchestra was the chance for them to prove their worthiness. Yet, despite Yoo Jin conducting with them and practicing, he chooses A Orchestra, whom are rich, precise, and talented, over them. Little do they know that this move was to save not only himself but S Orchestra as well. 

Being so arrogant, they all thought he was turning back into the stuck up student he was, and start to ostracize him. Feeling hurt and reminded of the past, Yoo Jin's consistent defense mechanism dwindles. Will S Orchestra realize their misunderstanding and help him before it's too late?