| 26/1/2000 | Konetsu BLOOD (高熱BLOOD) | |
|
1. | Konetsu BLOOD (高熱BLOOD) |
| 2. | Konetsu BLOOD (高熱BLOOD) (Issho ni Utao! "Rajikatari MIX"） | |
| 3/5/2000 | Jonetsu BALLAD (情熱BALLAD) | |
|
1. | Jonetsu BALLAD (情熱BALLAD) |
| 2. | Mother's day～K2 version | |
| 3. | Jonetsu BALLAD (情熱BALLAD) (Issho ni Utao! "Rajikatari MIX"） | |
| 4. | Mother's day～your version | |
| 19/7/2000 | Sweet Sweet Samba | |
|
1. | Sweet Sweet Samba |
| 2. | Sweet Sweet Samba (Issho ni Utao! "Rajikatari MIX"） | |
| 6/12/2000 | Easy Action | |
|
1. | Easy Action |
| 2. | Glaring Dream | |
| 3. | Easy Action (Issho ni Utao! "Rajikatari MIX"） | |
| 28/2/2001 | No! Virtual | |
|
1. | No! Virtual |
| 2. | No! Virtual (Issho ni Utao! "Rajikatari MIX"） | |
| 3. | Konetsu BLOOD (高熱BLOOD) (2000.7.23 Hibiya Yagai Ongakudou LIVE EDIT) | |
| 23/5/2001 | Love Stuff | |
|
1. | Love Stuff |
| 2. | Love Stuff (Love Shuffle Mix) | |
| 22/6/2005 | BLAZE | |
|
1. | BLAZE |
| 2. | Refraction | |
| 3. | BLAZE (Instrumental) | |
| 17/8/2005 | aerial | |
|
1. | aerial |
| 2. | Season | |
| 3. | aerial (Instrumental) | |
| 24/05/2006 | IT'S | |
|
1. | IT'S |
| 2. | Skid Mark (スキッドマーク) | |
| 3. | IT'S (Instrumental) | |
| 26/1/2007 | BEST POSITION!!! | |
|
1. | BEST POSITION!!! |
| 2. | Mikazuki (三日月) ~Dearest One~ | |
| 3. | BEST POSITION!!! (Instrumental) | |
| 28/6/2009 | inherit | |
|
1. | inherit |
| 15/8/2009 | Nijiiro Life. (ニジイロLife.) | |
|
1. | Nijiiro Life. (ニジイロLife.) |
| 12/10/2009 | Sleepless Riders ~ Nemuri wo Suteta Senshitachi no yuutsu (Sleepless Riders ～眠りを捨てた戦士たちの憂鬱) | |
|
1. | Sleepless Riders ~ Nemuri wo Suteta Senshitachi no Yuutsu (Sleepless Riders ～眠りを捨てた戦士たちの憂鬱) |
| 4/11/2009 | Kimi to Boku (キミトボク) | |
|
1. | Kimi to Boku (キミトボク) |
| 5/11/2009 | BA-KU | |
|
1. | BA-KU |
| 23/11/2009 | Code-139. | |
|
1. | Code-139. |
| 24/11/2009 | alabaster | |
|
1. | alabaster |
| 4/12/2009 | Burst Limit | |
|
1. | Burst Limit |
| 16/7/2011 | SAMURAI SOUL | |
|
1. | SAMURAI SOUL |
| 2. | For Far East!!! | |
| 3/10/2012 | Sora, Kaze (ソラ、カゼ) (CD+DVD) | |
|
1. | Sora, Kaze (ソラ、カゼ) |
| 2. | Junketsu Paradox (純潔パラドックス) | |
| 3. | Platinum (プラチナ) | |
| 4. | Sora, Kaze (ソラ、カゼ) (Instrumental) | |
| 5. | Junketsu Paradox (純潔パラドックス) (Instrumental) | |
| 6. | Platinum (プラチナ) (Instrumental) | |
| DVD: | ||
| 1. | Sora, Kaze (ソラ、カゼ) (PV) | |
| 11/02/2015 | This is GRAVITATION Vol.1 | |
 |
1. | Spicy Marmalade |
| 2. | Blind Game Again | |
| 3. | Sleepless beauty | |
| 4. | Shining Collection | |
| 13/5/2015 | This is GRAVITATION Vol.2 | |
 |
1. | THE RAGE BEAT |
| 2. | MOONSHINE DANCE | |
| 3. | in the moonlight | |
| 4. | Yuuutsuna Seven days (憂鬱なSeven days) | |
| 12/08/2015 | This is GRAVITATION Vol.3 | |
 |
1. | LOVE & JOY |
| 2. | Smashing Blue | |
| 3. | antinostalgic | |
| 4. | Glaring Dream | |
| 15/06/2016 | raremetal heart | |
 |
1. | raremetal heart |
| 2. | aerial | |
| 3. | raremetal heart (Instrumental) | |
| 28/12/2016 | Owl of Soul | |
 |
1. | Owl of Soul |
| 2. | Continuation | |
| 3. | Owl of Soul (Instrumental) | |
| 26/9/2018 | metropolitan cowboy | |
 |
1. | metropolitan cowboy |
| 2. | Mr Party. | |
| 3. | metropolitan cowboy (Instrumental) | |
| 23/7/1999 | Spicy Marmalade | |
|
1. | Spicy Marmalade |
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