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

2019 02.27	Watashi ni Tenshi ga Maiorita Character Song Album	Song
2022 10.12	Watashi ni Tenshi ga Maiorita! Precious Friends Sound Collection (VTCL-60566)	Song
2022 10.12	Watashi ni Tenshi ga Maiorita! Precious Friends Sound Collection [CD+DVD] (VTZL-213)	Song