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

2013 04.10	Onegai Cinderella (COCC-16718)	Song
2013 10.02	THE IDOLM@STER Cinderella Master Passion Jewelries! 001 (COCX-38252)	Song/Talk
2016 09.15	Mausu Theater 002 (MAPR-0004)	Talk
2020 02.12	Princess Connect Re:Dive Character Song Album Vol.1 (COZX-1623)	Song
2023 02.15	Princess Connect Re:Dive Character Song Album Vol.4 (COCX-41975)	Song