Haruki is entranced by Setsuna's singing on the rooftop, and plots to get her to join the Light Music Club no matter what.  But she hates standing out, so convincing her is incredibly difficult.  Meanwhile, the club has an even bigger problem.  The elite student from Music Room 2 he was trying to persuade to join his club as the keyboard player isn't a member of the Music Class, it's a mysterious person whose class and identity are a total unknown.
Do you want to join the 
Light Music Club?
Möchtest du dem Klub
 für Unterhaltungsmusik beitreten?
¿Quieres unirte al club de música pop?
¡¿Te gustaría unirte al 
club de música pop?!
Ça te dirait d’intégrer 
le club de musique pop ?
Você quer entrar no Clube de Música Popular?