Chaos; Head CDs
| date | CD | singers |
|---|---|---|
| 2008 06.25 | Zaika na Keiyaku no Chi wo (Phantasm) | Sakakibara Yui |
| 2008 12.24 | Chaos; Head Trigger 1 Nishijou Nanami | Miyazaki Ui |
| 2008 12.24 | Chaos; Head Trigger 2 Sakihara Rimi | Kitamura Eri |
| 2009 01.28 | Chaos; Head Trigger 3 Kishimoto Ayase | Sakakibara Yui |
| 2000 01.28 | Chaos; Head Trigger 4 Orihara Kozue | Tsuji Ayumi |
| 2009 02.25 | Chaos; Head Trigger 5 Kusunoki Yua | Takahashi Chiaki |
| 2009 02.25 | Chaos; Head Trigger 6 Aoi Sena | Nabatame Hitomi |
| 2009 02.25 | Allelujah no Fukuin (Phantasm) | Sakakibara Yui |
| 2010 04.28 | Inori no Violette (Phantasm) | Sakakibara Yui |
| 2011 08.24 | Chaos; Head Vocal Collection | many |
| 2011 09.21 | Science Adventure Dance Remix | Sakakibara Yui, others |
| 2011 12.21 | Revival Prophecy | Sakakibara Yui |
[Chaos; Head CDs]
