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

1997 04.18	Digital Ange Dennou Tenshi SS	Talk
1999 12.23	Tokimeki Memorial 2 Vocal Tracks (KMCA-39)	Song
2000 02.00	High School Aura Buster Himitsu no Tekken! Special CD (8SSX122)	Talk
2000 05.10	Tokimeki Memorial 2 Vocal Tracks 2 (KMCA-56)	Song
2001 03.21	Tokimeki Memorial 2 Vocal Tracks 3 (KMCA-88)	Song
2001 08.29	Tokimeki Memorial 2 Vocal Tracks 4 (KMCA-115)	Song
2002 05.22	Tokimeki Memorial 2 Vocal Tracks 5 (KMCA-157)	Song