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.
He was saying me he would 
get you to join, no matter what.
Er sagte zu mir, dass er dich zum Beitritt 
bewegen würde, komme, was wollte.
Me decía que sin duda iba 
a lograr que te unieras.
Me dijo que lograría convencerte.
Il a dit qu’il te ferait intégrer 
le groupe par tous les moyens.
Ele estava dizendo que faria
você entrar de qualquer jeito.