Tsuchiya Rio CDs (miscellaneous)
Rio appears (sings/talks) in the following miscellaneous CDs.
| 2021.01.20 | The Idolm@ster Shiny Colors Colorful Fe@thers -Stella- (LACA-15861) | Song |
| 2025.09.03 | Shiny Colors Song for Prism (LACA-25155) | Song |
| 2025.12.24 | Shiny Colors Song for Prism Borderline (LACA-25180) | Song |