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.
But what does this homemade 
food have to do with that?
Aber was hat dieses hausgemachte Essen 
damit zu tun?
¿Pero qué tiene que ver la comida con eso?
¿Y qué tiene que ver 
la comida con eso?
Je veux dire, quel lien entre 
cette discussion et ce festin ?
Mas o que esta comida caseira 
tem a ver com isso?