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.
...that means there's no 
harm in being around you.
dass es keinen Nachteil mit sich bringen wird, 
bei euch zu sein.
que significa que no me haría 
mal tenerlos cerca.
que no importa si os tengo cerca.
que não há mal nenhum em 
ficar perto de vocês.