Single
| 21/8/1993 | Dare Yori mo Zutto... (誰よりもずっと) | |
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1. | Dare Yori mo Zutto... |
| 2. | . Dare Yori mo Zutto... <OFF VOCAL VERSION> | |
| 3. | [RADIO DRAMA] Nekketsu Denpa Kurabu Fantasia: Episode 1 "Hibon naru Gakuen Seikatsu" | |
| 26/1/1993 | Yume ni Konnichiwa (夢にこんにちは) | |
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1. | Yume ni Konnichiwa |
| 2. | Liverpool ni Oide | |
| 3. | Yume ni Konnichiwa <OFF VOCAL VERSION> | |
| 4. | Liverpool ni Oide <OFF VOCAL VERSION> | |
| 21/1/1994 | I WAS BORN TO FALL IN LOVE | |
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1. | I WAS BORN TO FALL IN LOVE |
| 2. | FULL UP MIND | |
| 3. | I WAS BORN TO FALL IN LOVE(OFF VOCAL VERSION) | |
| 4. | FULL UP MIND(OFF VOCAL VERSION) | |
| 5/3/1994 | REINCARNATION | |
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1. | REINCARNATION |
| 2. | Ryoute Ippai no Yume | |
| 3. | REINCARNATION <OFF VOCAL VERSION> | |
| 4. | Ryoute Ippai no Yume <OFF VOCAL VERSION> | |
| 5/8/1994 | My Jolly Days | |
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1. | My Jolly Days |
| 2. | BEATS the BAND | |
| 3. | My Jolly Days <OFF VOCAL VERSION> | |
| 4. | BEATS the BAND <OFF VOCAL VERSION> | |
| 21/12/1994 | It's DESTINY | |
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1. | It's DESTINY -Yatto Meguriaeta- |
| 2. | Live alone Sennen Tattemo | |
| 3. | It's DESTINY -Yatto Meguriaeta- (Instrumental) | |
| 4. | Live alone Sennen Tattemo (Instrumental) | |
| 24/5/1995 | Get along (with Megumi Hayashibara) | |
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1. | Get along |
| 2. | KUJIKENAIKARA! | |
| 3. | Get along (Instrumental) | |
| 4. | KUJIKENAIKARA! (Instrumental) | |
| 3/11/1995 | MASK | |
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1. | MASK |
| 2. | LOVE IS FIRE | |
| 3. | MASK <OFF VOCAL VERSION> | |
| 4. | .LOVE IS FIRE <OFF VOCAL VERSION> | |
| 3/11/1995 | WHAT'S UP GUYS? | |
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1. | WHAT'S UP GUYS? |
| 2. | MASK | |
| 24/1/1996 | Shake it to your heart | |
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1. | Shake it your heart |
| 2. | Lonely soul | |
| 3. | Shake it your heart(OFF VOCAL VERSION) | |
| 4. | Lonely soul(OFF VOCAL VERSION) | |
| 24/4/1996 | Give a reason (with Megumi Hayashibara) | |
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1. | Give a reason |
| 2. | Jama wa Sasenai (邪魔はさせない) | |
| 3. | Give a reason <OFF VOCAL VERSION> | |
| 4. | Jama wa Sasenai (邪魔はさせない) <OFF VOCAL VERSION> | |
| 5/12/1996 | naked mind | |
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1. | naked mind |
| 2. | Niji no You ni | |
| 3. | naked mind <OFF VOCAL VERSION> | |
| 4. | Niji no You ni <OFF VOCAL VERSION> | |
| 5/3/1997 | J | |
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1. | J |
| 2. | spirit of the globe | |
| 3. | J(OFF VOCAL VERSION) | |
| 4. | spirit of the globe(OFF VOCAL VERSION) | |
| 21/5/1997 | Rondo-revolution | |
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1. | Rondo-revolution |
| 2. | I Can't... | |
| 3. | Rondo-revolution <OFF VOCAL VERSION> | |
| 4. | I Can't... <OFF VOCAL VERSION> | |
| 21/5/1997 | Rondo-revolution | |
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1. | Rondo-revolution |
| 2. | truth | |
| 3. | Rondo-revolution <OFF VOCAL VERSION> | |
| 4. | truth <OFF VOCAL VERSION> | |
| 21/6/1997 | Souda, Zettai (そうだ、ぜったい。) | |
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1. | Souda, Zettai |
| 2. | Precious wing | |
| 3. | Souda, Zettai <OFF VOCAL VERSION> | |
| 4. | Precious wing <OFF VOCAL VERSION> | |
| 22/5/1998 | Birth | |
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1. | Birth |
| 2. | Himawari | |
| 3. | Birth <OFF VOCAL VERSION> | |
| 4. | Himawari <OFF VOCAL VERSION> | |
| 7/8/1998 | AKA | |
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1. | AKA |
| 2. | Koishimasho Nebarimasho | |
| 3. | AKA <OFF VOCAL VERSION> | |
| 4. | Koishimasho Nebarimasho <OFF VOCAL VERSION> | |
| 27/11/1998 | Never die | |
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1. | Never die |
| 2. | Naritai | |
| 3. | Never die <OVA ED Style> | |
| 4. | Never die <OFF VOCAL VERSION> | |
| 13/3/1999 | Key | |
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1. | Key |
| 2. | Te no Hira no Kakera | |
| 3. | Key <OFF VOCAL VERSION> | |
| 4. | Te no Hira no Kakera <OFF VOCAL VERSION> | |
| 8/5/1999 | Tenshi no Kyuusoku (天使の休息) | |
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1. | Tenshi no Kyuusoku |
| 2. | Rururu | |
| 3. | Tenshi no Kyuusoku <Backing Track> | |
| 4. | Rururu <Backing Track> | |
| 2/7/1999 | labyrinth | |
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1. | labyrinth |
| 2. | Toki ni Ai wa | |
| 3. | labyrinth <Karaoke> | |
| 4. | Toki ni Ai wa <Karaoke> | |
| 26/11/1999 | Sore wa Totsuzen Yatte Kuru (それは突然やってくる) | |
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1. | Sore wa Totsuzen Yatte Kuru |
| 2. | eternal promise [DECK ver.] | |
| 3. | Sore wa Totsuzen Yatte Kuru INSTRUMENTAL | |
| 4. | eternal promise [DECK ver.] INSTRUMENTAL | |
| -Special Tracks- | ||
| 5. | labyrinth ~Live~ | |
| 6. | Toki ni Ai wa [ITARU ver.] ~Live~ | |
| 13/12/1999 | only one, NO.1 | |
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1. | only one, NO.1 |
| 2. | only one, NO.1(off vocal version) | |
| 26/4/2000 | OVER THE END | |
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1. | OVER THE END |
| 2. | Moon | |
| 3. | OVER THE END (instrumental) | |
| 4. | Moon (instrumental) | |
| 5. | OVER THE END (MOZAMBIQUE club mix) | |
| 21/7/2000 | TURNING POINT | |
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1. | TURNING POINT |
| 2. | CHAOS | |
| 3. | TURNING POINT(instrumental) | |
| 4. | CHAOS(instrumental) | |
| 5. | CUTIE(Kenji Kitajima remix) (special track) | |
| 21/7/2000 | CUTIE | |
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1. | CUTIE |
| 2. | CUTIE <OFF VOCAL VERSION> | |
| 30/8/2000 | Just do it | |
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1. | Just do it |
| 2. | Just do it [instrumental] | |
| 7/2/2001 | Sora ni Kakeru Hashi (空にかける橋) | |
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1. | Sora ni Kakeru Hashi |
| 2. | I'd love you to touch me | |
| 3. | Sora ni Kakeru Hashi [instrumental] | |
| 4. | I'd love you to touch me [instrumental] | |
| 21/3/2001 | Megami ni Naritai ~for a yours~ | |
Buy IT! |
1. | Megami ni Naritai ~for a yours~ |
| 2. | Megami ni Naritai ~for a yours~ [instrumental] | |
| 3. | only one, No.1 [Live ver.] | |
| 24/4/2001 | Shuffle | |
Buy IT! |
1. | Shuffle |
| 2. | Ano Hi no Gogo | |
| 3. | Shuffle [instrumental] | |
| 4. | Ano Hi no Gogo [instrumental] | |
| 5. | Shuffle [D.V-mix] | |
| 25/7/2001 | DEPORTATION ~but, never too late~ | |
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1. | DEPORTATION ~but, never too late~ |
| 2. | Jounetsu | |
| 3. | DEPORTATION ~but, never too late~ [instrumental] | |
| 4. | Jounetsu [instrumental] | |
| 5. | DEPORTATION ~but, never too late~ [A.C ver.] | |
| 22/8/2002 | HAPPY PLACE | |
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1. | HAPPY PLACE |
| 2. | Iiwake | |
| 3. | DEVOTION from Live Devotion | |
| 27/11/2003 | SECOND IMPACT | |
Buy IT! |
1. | SECOND IMPACT |
| 2. | PURE | |
| 3. | MESSAGE | |
| 4. | SECOND IMPACT (Instrumental) | |
| 5. | PURE (Instrumental) | |
| 6. | MESSAGE (Instrumental) | |
| 8/12/2004 | Olive | |
Buy IT! |
1. | Olive |
| 2. | SNOWY | |
| 3. | Troubadour~Ginyuushijin~ | |
| 4. | Olive (Instrumental) | |
| 5. | SNOWY (Instrumental) | |
| 6. | Troubadour~Ginyuushijin~ (Instrumental) | |
| 11/5/2005 | TRUST | |
Buy IT! |
1. | TRUST |
| 2. | A confession of TOKIO | |
| 3. | TRUST (Instrumental) | |
| 4. | A confession of TOKIO (Instrumental) | |
| 25/1/2006 | mitsu | |
Buy IT! |
1. | mitsu |
| 2. | Paradise Lost | |
| 3. | Sora ni Kakeru Hashi ~Unplugged Version~ | |
| 4. | mitsu (Instrumental) | |
| 5. | Paradise Lost (Instrumental) | |
| 10/5/2006 | zero-G | |
Buy IT! |
1. | zero-G |
| 2. | Gift | |
| 3. | zero-G (Instrumental) | |
| 4. | Gift (Instrumental) | |
| 9/8/2006 | WILD SPACE | |
Buy IT! |
1. | WILD SPACE |
| 2. | Lunatic Summer | |
| 3. | WILD SPICE (Instrumental) | |
| 4. | Lunatic Summer (Instrumental) | |
| 26/1/2007 | Remote Viewing | |
Buy IT! |
1. | Remote Viewing |
| 2. | Haitoku no KISS ~Love of a fallen angel~ | |
| 3. | Remote Viewing (Instrumental) | |
| 4. | Haitoku no KISS ~Love of a fallen angel~ (Instrumental) | |
| 4/7/2007 | It's my life (CD+DVD) | |
Buy IT! |
1. | It's my life |
| 2. | -w- | |
| 3. | It's my life (Instrumental) | |
| 4. | -w- (Instrumental) | |
| DVD: | ||
| 1. | live footage from "Okui Masami Count Down Live 2006 - 2007" | |
| 25/7/2007 | RING | |
Buy IT! |
1. | RING |
| 2. | RING -Ballad Version- | |
| 3. | RING (Instrumental) | |
| 4. | RING -Ballad Version- (Instrumental) | |
| 21/11/2007 | INSANITY | |
Buy IT! |
1. | INSANITY |
| 2. | TOTAL ECLIPSE | |
| 3. | INSANITY (Instrumental) | |
| 4. | TOTAL ECLIPSE (Instrumental) | |
| 5/11/2008 | Melted Snow | |
Buy IT! |
1. | Melted Snow |
| 2. | Shape of myself | |
| 3. | Melted Snow (Instrumental) | |
| 4. | Shape of myself (Instrumental) | |























