Yukiko Hiraoka
Discography
| Date | Catalog | Name | Roles |
| 2010-06-16 | KICM-1311 | Ido e Itaru Mori e Itaru Ido / Sound Horizonイドへ至る森へ至るイド / Sound HorizonIdo e Itaru Mori e Itaru Ido / Sound Horizon |
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| 2010-06-16 | KICM-91311 | Ido e Itaru Mori e Itaru Ido / Sound Horizon [Limited Edition]イドへ至る森へ至るイド / Sound HorizonIdo e Itaru Mori e Itaru Ido / Sound Horizon [Limited Edition] |
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| 2010-12-15 | KICS-1630 | Märchen / Sound HorizonMärchen / Sound HorizonMärchen / Sound Horizon |
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| 2010-12-15 | KICS-91630 | Märchen / Sound Horizon [Limited Edition]Märchen / Sound Horizon [Limited Edition]Märchen / Sound Horizon [Limited Edition] |
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