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.
is your classmate who 
sits right next to you.
deine Klassenkameradin 
ist, die neben dir sitzt.
sea tu compañera y se siente a tu lado.
sea tu compañera de clase 
y se siente justo a tu lado.
n’était autre que 
ta voisine de classe.
é sua colega e senta ao seu lado.