A short trailer for the single-episode OVA Shin Koihime Musou Live Revolution, released in March 2010. This was created by studio Doga Kobo as a spin-off project from the original series, in which that Kan'u, Chouhi, Ryuubi and other characters sing the theme songs from Koihime Musou and Shin Koihime Musou on the stage. (based on AniDB synopsis)