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

1997.07.end	Sentimental Graffiti Official Fan Club CD-01	Talk
1997.09.end	Sentimental Graffiti Official Fan Club CD-02	Talk
1997.11.01	Sentimental Graffiti summer concert live CD	Song
1997.11.19	Ano Hi no Mama no Kimi de Ite 2	Talk
1997.12.17	Saikai 5 Byoumae Deatta Koro no Youni 1	Talk
1998.01.22	Sentimental Graffiti Omoide Tachi to no 12 Kagetsu	Talk
1998.01.end	Sentimental Graffiti Official Fan Club CD-04	Talk
1998.02.21	3x4 The Other Seasons	Song/Talk
1998.06.27	Omoide no School Days 1 (MACM-1010)	Talk
1998.08.01	Senti na Natsuyasumi (COCC-15316)	Song
1998.08.01	Sentimental Graffiti Song Collection (COCC-15317)	Song
1998.11.28	Tokyo Shuugou! Anata wo Motto Shiritakute 3	Talk
1998.12.12	Sentimental Graffiti 1-4 Box (MACM-9002)	Talk
1998.12.26	Sentimental Graffiti DJ CD 1-2 (MACM-1033 MACM-1034)	Talk
1998.12.31	Sentimental Journey Final Character Collection Box (APDM-9000)	Song/Talk
1999.01.30	Sentimental Graffiti Final Drama CD	Talk
1999.04.21	Over Rev (APCM-5128)	Talk
2000.03.18	Sentimental Graffiti Super Best -Setsunasa no Tobira-	Song
2000.03.??	Voice Fantasy vol 1 (CRCA-20006)	Talk
2000.09.21	Ren'ai Catalog -Tiny Darling Cupid- (LACA-5009)	Talk
2002.01.26	Green Green volume 1 (KICA-1257)	Talk
2002.02.28	Green Green volume 2 (KICA-1258)	Talk
2002.11.07	Milky Season (SCDC-00214)	Talk