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

2017 07.26	The Idolm@ster Million The@ter Generation 01 (LACM-14631)	Song
2017 11.22	The Idolm@ster Million The@ter Generation 02 (LACM-14632)	Song/Talk
2018 02.28	The Idolm@ster Million The@ter Generation 05 (LACM-14635)	Song/Talk