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've told you this before, Touma,
Ich sagte dir das schon einmal, Touma,
Te lo dije antes, Touma,
Ya te lo dije, Touma.
Je l’ai toujours dit,
Já disse antes, Touma,