The "elite student in music room 2" turns out to be Haruki's delinquent classmate, Kazusa Touma.  With his characteristic pushiness, he tries to get her to join the light music club.  But his pushiness backfires, and only makes her more annoyed.  Setsuna gets irritated... no, involved, and approaches Kazusa secretly.
Actually, I was hoping you would join, too.
Nun, ich dachte, du wärst auch dabei.
Esperaba que te unieras también.
La verdad es que me gustaría 
que tú también te unieras.
En réalité, je pensais 
que tu en faisais partie.
Gostaria que você entrasse também.