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