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.
You don't think everybody was 
just pretending not to notice?
Glaubst du nicht, dass alle 
nur Unwissenheit vortäuschen?
¿No crees que finjan no darse cuenta?
¿Nunca has pensado que tal vez 
la gente finja no darse cuenta?
Tu ne crois pas que tout le monde 
fait semblant de ne pas savoir ?
Será que todo mundo só finge não notar?