| Single details | Peak chart position (JPN) | Copies sold |
"Ōsaka no onna" (大阪の女, Woman from Ōsaka) - Debut Single
- Released: July 28, 1999
| 45 | 48,000 |
"Kaihōku" (解放区, Liberated District) - 2nd Single
- Released: September 27, 2000
| 28 | 44,000 |
"Papiyon: Papillon" (パピヨン: Papillon, Butterfly) - 3rd Single
- Released: February 7, 2001
| 14 | 216,000 |
"Ichiba ni Ikō" (市場に行こう, Let's Go to the Market) - 4th Single
- Released: May 30, 2001
| 23 | 57,000 |
"Yasashii Kiss no Mitsukekata" (やさしいキスの見つけ方, To Find a Friendly Kiss) - 5th Single
- Released: September 12, 2001
| 17 | 46,000 |
"Shanti" (シャンティ) - 6th Single
- Released: January 30, 2002
| 7 | 87,000 |
"Amairo no Kami no Otome" (亜麻色の髪の乙女, The Girl with the Flaxen Hair) - 7th Single
- Released: May 9, 2002
| 4 | 375,000 |
"Amairo Maxi" (亜麻色マキシ, Flaxen Maxi) - 8th Single
- Released: July 10, 2002
| 7 | 66,000 |
"Itsu no hi ni ka..." (いつの日にか・・・, One of These Days...) - 9th Single
- Released: October 23, 2002
| 10 | 62,000 |
"Akai Sabaku no Densetsu" (赤い砂漠の伝説, Legend of the Red Desert) - 10th Single
- Released: February 26, 2003
| 12 | 44,000 |
"Genki o Dashite" (元気を出して, Be Cheerful) - 11th Single
- Released: June 4, 2003
| 10 | 41,000 |
"Perseus" (ペルセウス, Peruseusu) - 12th Single
- Released: July 16, 2003
| 8 | 72,000 |
"Yume Biyori" (YUME日和, Dream Weather) - 13th Single
- Released: November 6, 2003
| 30 | 55,000 |
"Viola" - 14th Single
- Released: March 17, 2004
| 17 | 24,000 |
"Jewel of Kiss" - 15th Single
- Released: June 2, 2004
| 21[1] | 17,000 |
"Angelus/Z! Z! Z! (Zip! Zap! Zipangu!)" (Angelus -アンジェラス-) - 16th Single
- Released: August 11, 2004
| 8 | 53,000 |
"Garnet Moon/Inori" (祈り, Prayer) - 17th Single
- Released: January 26, 2005
| 8 | 81,000 |
"Mermaid" - 18th Single
- Released: June 15, 2005
| 18 | 20,400 |
"Falco" (ファルコ, Faruko) - 19th Single
- Released: August 10, 2005
| 11 | 36,000 |
"Mahiru no tsuki" (真昼の月, Midday Moon) - 20th Anniversary Single
- Released: August 31, 2005
| 24 | 10,000 |
"Haru Machibito/Camellia" (春待人/Camellia -カメリア-, Person Waiting for Spring) - 21st Single
- Released: March 15, 2006
| 19 | 12,400 |
"Destiny (Taiyō no Hana)/Koimizu (Tears of Love)" (Destiny: 太陽の花/恋水: Tears of Love, Destiny: Sunflower) - 22nd Single
- Released:June 21, 2006
| 14 | 27,000 |
"Pasio" (パッシオ) - 23rd Single
- Released: November 15, 2006
| 12 | 12,100 |
"Futari de iijanai" (ふたりでいいじゃない, Two People Is Not Enough) - Collaboration Single
- Released: January 15, 2007
| 25 | 13,000 |
"Dragonfly" - Released: February 21, 2007
| 29 | 7,800 |
"Neva Eva" - 25th Single
- Released: June 6, 2007
| 22 | 10,800 |
"Shinku/Ai no Uta" (深紅/愛の歌, Deep Crimson/Song of Love) - 26th Single
- Released: September 5, 2007
| 14 | 25,000 |
"Nakitai Nara" (泣きたいなら, If I Want to Cry) - 27th Single
- Released: March 19, 2008
| 34 | 5,000 |
"Wake You Up/Ame no Hi ni wa Ame no Naka o Kaze no Hi ni wa Kaze no Naka o/Marvelous" (雨の日には 雨の中を 風の日には 風の中を, In the Rain When It's Raining, In the Wind When It's Windy) - 28th/29th Single
- Released: June 25, 2008
| 33 | 6,000 |
"Ame no Hi ni wa Ame no Naka o Kaze no Hi ni wa Kaze no Naka o" (雨の日には 雨の中を 風の日には 風の中を, In the Rain When It's Raining, In the Wind When It's Windy) - 28th/29th Single, Collaboration Single
- Released: June 25, 2008
| 33 | 6,000 |
"Smiles" - 30th Single
- Released: March 4, 2009
| 27 | 5,000 |
"Mayonaka no Guitar" (真夜中のギター) - 31st Single
- Released: October 6, 2010
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"Kantan ni ieta nara" (簡単に言えたなら) - 32nd Single
- Released: February 16, 2011
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"Shiawase hakoberu you ni" (しあわせ運べるように) - 33rd Single
- Released: March 7, 2012[2]
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"Ureshiikoto" (うれしいこと) - 34th Single
- Released: March 28, 2012
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| "Yaburekabure" (やぶれかぶれ) | 48[3] | |
"Golden Lady" - Released: August 22, 2018[4]
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