Rei appears (sings/talks) in the following CD singles.

2012.08.08	The Idolm@ster Cinderella Master 008 (COCC-16630)	Song
2012.09.05	Oda Nobuna no Yabou Utahime 03 (PCCG-70153)	Song
2015.02.18	The IDOLM@STER Cinderella Girls Animation Project 01 (COZC-1027)	Song
2015.04.08	The IDOLM@STER Cinderella Girls Animation Project 05 (COCC-17025)	Song/Talk
2015.05.13	The IDOLM@STER Cinderella Girls Animation Project 08 (COCC-17028)	Song
2015.08.05	The IDOLM@STER Cinderella Girls Animation Project 2nd Season 01 (COXC-1083)	Song
2015.09.23	The IDOLM@STER Cinderella Girls Animation Project 2nd Season 02 (COCC-17062)	Song
2016.12.07	Cinderella Girls Starlight Master 07 (COCC-17147)	Song
2017.02.08	Evermore (COCC-17282)	Song
2017.05.31	Cinderella Girls Starlight Master 11 Ankira!? Kyousoukyoku (COCC-17151)	Song
2017.06.28	Sun Flower (COCC-17313)	Song
2018.01.10	Cinderella Girls Little Stars! Snow * Love (COCC-17393)	Song
2018.07.18	Cinderella Girls Starlight Master 19 (COCC-17159)	Song
2018.11.28	Princess Connect Re:Dive Priconne Character Song 06 (COCC-17366)	Song/Talk
2019.03.20	Cinderella Girls Starlight Master 27 (COCC-17517)	Song
2019.10.23	Cinderella Girls Starlight Master 33 (COCC-17523)	Song
2021.02.24	Princess Connect Re:Dive Priconne Character Song 20 (COCC-17680)	Song
2021.04.07	Cinderella Girls Little Stars Extra! Life is Harmony (COCC-17804)	Song
2023.07.12	Cinderella Girls Starlight Master Platinum Number 03 (COCC-18083)	Song
2023.08.02	Cinderella Girls Starlight Master Platinum Number 05 (COCC-18085)	Song