Noise and Noise Kaijin have run amok, causing several tragedies for mankind. Kamen Riders and Symphogear users are fending off these foes but their power may not be enough. Through research and development, a new system shall be born to help these two powers. Sing and play the chained symphony through the hearts of the brave! Arise, Kamen Rider IXA R! R&R for story progress