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

2013.02.20	Tamako Market Character Song Album Twinkle Ride (PCCG-1328)	Song
2013.04.26	Tamako Market Original Sound Track Snappy Music Around of Tamako (PCCG-1329)	Song
2013.09.25	THE IDOLM@STER Cinderella Master Cool Jewelries! 001 (COCX-38251)	Song/Talk
2016.04.27	START (VTCL-35228)	Song
2017.03.15	GirlFriend Character Song Series Vol.03 (PCCG-1593)	Song
2018.02.14	Munya Munya Gecchu Koifubuki (PCCG-1643)	Song