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.
No matter how minor a secret it is.
So unbedeutend dein Geheimnis auch sein mag.
No importa lo pequeño que sea ese secreto.
Es un secreto sin importancia, 
pero estará a salvo conmigo.
Quel que soit le ridicule 
de ton secret.
Por mais que seja um segredo tão insignificante.