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.
Using Ogiso to show me 
how sincere you were,
Hast du Ogiso nicht benutzt, 
um zu zeigen, wie aufrichtig du bist,
Usar a Ogiso para mostrarme que ibas en serio
Lo de usar a Ogiso para demostrarme
Utiliser Ogiso pour m’amadouer 
avec des bons sentiments ?
Usar a Ogiso para mostrar
que você estava falando sério