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

2019 01.30	Kimama na Tenshi Tachi (VTZL-152)	Song
2019 10.23	Cinderella Girls Starlight Master for the Next 01 (COCC-17701)	Song
2019 11.13	Cinderella Master 3chord for the Pops (COCC-17693)	Song
2020 06.10	Cinderella Girls Starlight Master 39 (COCC-17529)	Song
2021 03.03	Cinderella Girls Starlight Master Collaboration Great Journey (COCC-17862)	Song
2021 08.04	The IDOLM@STER Series Image Song 2021 VOY@GER 765PRO ALLSTARS (COCC-17911)	Song
2021 08.04	The IDOLM@STER Series Image Song 2021 VOY@GER Cinderella Girls (COCC-17912)	Song
2021 08.04	The IDOLM@STER Series Image Song 2021 VOY@GER Million Live (LACM-24163)	Song
2021 08.04	The IDOLM@STER Series Image Song 2021 VOY@GER Shiny Colors (LACM-24165)	Song
2021 08.04	The IDOLM@STER Series Image Song 2021 VOY@GER Side M (LACM-24164)	Song
2022 04.20	The Idolm@ster Cinderella Master 062 (COCC-18009)	Song
2023 04.05	Cinderella Girls Starlight Master R/Lock On! 15 (COCC-17985)	Song
2023 12.13	Cinderella Girls Starlight Master Platinum Number 13 (COCC-18093)	Song
2024 02.28	Cinderella Master Pajama Jama (COCC-18166)	Song