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.
I'd prefer to pretend 
I saw nothing, honestly.
Ich würde ehrlich gesagt lieber so tun,
als hätte ich nichts gesehen.
Preferiría fingir que no vi nada.
Pues prefiero hacerme el loco.
Je ferai celui qui n’a rien vu…
Eu prefiro fingir que não vi nada, para ser sincero.