Rikako appears (sings/talks) in the following miscellaneous CDs.

2012.09.05	Rinne no Lagrange 2 Character CD Vol.1 (VTCL-60317)	Talk
2013.08.28	THE IDOLM@STER LIVE THE@TER PERFORMANCE 05 (LACA-15315)	Song/Talk
2016.07.13	Bakuon Character Song Mini Album (LACA-15576)	Song
2016.12.07	The IDOLM@STER Live The@ter Forward 01 (LACA-15611)	Song
2018.01.10	The IDOLM@STER Million Live! M@ster Sparkle 05 (LACA-15675)	Song
2022.01.26	The IDOLM@STER Million Live! M@ster Sparkle2 04 (LACA-15904)	Song