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.
Look, I had nothing to do with this.
Damit hab ich nichts zu tun.
Como sea, no tuve nada que ver con esto.
En fin, no he tenido 
nada que ver en esto.
De toute façon, 
je n’ai rien à voir avec tout ça,
Enfim, eu não tenho nada a ver com isto hoje.