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.
I'm sorry, but you'll have 
to tell them to leave.
Tut mir leid, aber du wirst sie 
bitten müssen, zu gehen.
Lo siento, pero tendrás 
que decirles que se vayan.
Lo siento, pero tendrás 
que decirles que se vayan.
Je suis désolé, 
mais demande-leur de rentrer.
Sinto muito, mas peça para eles irem embora.