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

2021.02.17	The Idolm@ster Shiny Colors Colorful Fe@thers -Luna- (LACA-15862)	Song
2024.10.30	Happy Surprise Trick! (LACA-25127)	Song

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

2018.06.06	The Idolm@ster Shiny Colors Brilli@nt Wing 01 (LACM-14781)	Song
2018.10.03	The Idolm@ster Shiny Colors Brilli@nt Wing 05 (LACM-14785)	Song
2018.12.19	The Idolm@ster Shiny Colors Se@sonal Winter (LACM-14820)	Song
2019.04.10	The Idolm@ster Shiny Colors Fr@gment Wing 01 (LACM-14861)	Song
2019.08.21	The Idolm@ster Shiny Colors Fr@gment Wing 05 (LACM-14865)	Song
2020.02.12	The Idolm@ster Shiny Colors Sweet Step (LACM-14965)	Song
2020.04.08	The Idolm@ster Shiny Colors Gr@date Wing 01 (LACM-14982)	Song
2020.12.09	The Idolm@ster Shiny Colors Gr@date Wing 05 (LACM-14986)	Song
2021.04.14	The Idolm@ster Shiny Colors L@yered Wing 01 (LACM-24111)	Song
2021.08.18	The Idolm@ster Shiny Colors L@yered Wing 05 (LACM-24115)	Song
2022.04.13	The Idolm@ster Shiny Colors Panor@ma Wing 01 (LACM-24251)	Song
2022.08.10	The Idolm@ster Shiny Colors Panor@ma Wing 05 (LACM-24255)	Song
2023.07.12	The Idolm@ster Shiny Colors Canvas 04 (LACM-24364)	Song
2023.10.18	Shiny Colors Song for Prism Hoshi no Koe (LACM-24437)	Song
2024.01.24	Shiny Colors Song for Prism Ashita mo Beautiful Day (LACM-24476)	Song
2024.04.10	Tsubasa Gravity (LACM-24508)	Song
2024.08.07	The Idolm@ster Shiny Colors Echoes 04 (LACM-24544)	Song
2024.09.25	Shiny Colors Song from Prism Mellow Mellow (LACM-24610)	Song
2024.10.09	Prism Flare (LACM-24580)	Song