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.
Just tell me what this is all about first.
Sag mir jetzt zuerst, was 
es damit auf sich hat.
Solo dime de qué se trata primero.
Primero dime de qué va todo esto.
Quoi qu’il en soit, respecte 
les règles et discutes-en avec nous.
Só me diga que história toda é essa, afinal.