What is the song Muse performs on the rooftop of A-rise's school?


What is the song Muse performs on the rooftop of A-rise's school?

It was to qualify for the idol tournament, I think, and they wore blue
dresses.




The song they perform in season 2 episode 3 on top of A-RISE's school is
["Yume no Tobira"](http://love-live.wikia.com/wiki/Yume_no_Tobira).

