Hirohiko Takayama
Discography
| Date | Catalog | Name | Roles |
| 2009-06-21 | N/A | emerald area / hirohiko takayamaemerald area / hirohiko takayamaemerald area / hirohiko takayama |
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| 2010-04-21 | N/A | colours / hirohiko takayamacolours / hirohiko takayamacolours / hirohiko takayama |
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| 2012-02-21 | N/A | Consciousness / hirohiko takayamaConsciousness / hirohiko takayamaConsciousness / hirohiko takayama |
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