# Kotoko discography

This is the discography of the I've Sound singer Kotoko.

## Albums
### Studio albums

| Year | Album details | Peak Oricon chart positions | Sales (JPN) |
| 2000 | Sora o Tobetara... Released: December 29, 2000 Label: Self-release Format: CD | — | |
| 2004 | Hane Released: April 24, 2004 / June 20, 2006 (US) Label: Geneon Entertainment Inc. Format: CD | 7 | 40,383 |
| 2005 | Garasu no Kaze Released: June 8, 2005 Label: Geneon Entertainment Inc. Format: CD | 6 | 47,706 |
| 2006 | Uzu-maki Released: December 13, 2006 Label: Geneon Entertainment Inc. Format: CD | 16 | 36,965 |
| 2009 | Epsilon no Fune Released: October 14, 2009 Label: Geneon Entertainment Inc. Format: CD, CD+DVD | 12 | 15,475 |
| 2011 | Hiraku Uchū Pocket Released: October 5, 2011 Label: Warner Music Japan Format: CD | 21 | |
| 2013 | Kūchū Puzzle Released: November 20, 2013 Label: Warner Music Japan Format: CD, CD+DVD | 19 | |
| 2018 | Tears Cyclone: Kai Released: June 27, 2018 Label: NBCUniversal Format: CD | 29 | |
| 2019 | Tears Cyclone: Sei Released: June 26, 2019 Label: NBCUniversal Format: CD, CD+Blu-ray disc | 26 | |

### Compilation albums

| # | Album information | Sales |
| Debut | Anime's Compilation Best Released: December 23, 2009 Oricon top 300 position: #32 | 9,801 |

## Singles

| Year | Song(s) | Peak Oricon chart position | Total sales | Album |
| 2001 | "Love a Riddle" | — | | |
| 2002 | "Shooting Star" | 62 | | |
| 2003 | "Second Flight" (with Hiromi Satō) | 15 | | |
| 2004 | "Oboetete ii yo/DuDiDuWa*lalala" | 15 | | Garasu no Kaze |
| 2004 | "Re-sublimity" | 8 | 50,119 | Garasu no Kaze |
| 2005 | "Chi ni Kaeru (On the Earth)" | 19 | 28,706 | |
| 2005 | "421: A Will" | 16 | 13,667 | Garasu no Kaze |
| 2006 | "Face of Fact (Resolution ver.)" | 21 | | |
| 2006 | "Being" | 4 | 34,736 | Uzu-maki |
| 2006 | "Chercher" | 16 | 17,090 | |
| 2007 | "Kirei na Senritsu" | 18 | 12,249 | |
| 2007 | "Hayate no Gotoku!" | 7 | 33,421 | Epsilon no Fune |
| 2007 | "Shichiten Hakki Shijou Shugi!" | 8 | 28,619 | |
| 2007 | "Real Onigokko" | 15 | 13,763 | Epsilon no Fune |
| 2008 | "Blaze" | 13 | 26,813 | Epsilon no Fune |
| 2008 | "Special Life!" | 13 | 14,502 | |
| 2008 | "U Make Ai Dream" | 46 | | |
| 2009 | "Snipe" | | | |
| 2009 | "Ao-Iconoclast / Pigeon-The Green-ey'd Monster" | 26 | 7,003 | |
| 2009 | "Daily-daily Dream" | 16 | 10,428 | |
| 2009 | "Screw" | 24 | 4,649 | |
| 2010 | "Hekira no Sora e Izanaedo" | 18 | 7,618 | |
| 2010 | "Loop-the-Loop" | 18 | 4,304 | Kūchū Puzzle |
| 2011 | "Light My Fire" | 19 | | Kūchū Puzzle |
| 2011 | "One-Chance!!" (with Hiromi Satō) | | | |
| 2012 | "Unfinished" | 14 | | Kūchū Puzzle |
| 2012 | "Restart" | 37 | | Kūchū Puzzle |
| 2013 | "Kaiki Shinsei: Recurrent Nova/Natsukaze Nostalgia" (with Hiromi Satō) | 34 | | |
| 2014 | "Tough Intention" | 34 | | |
| 2014 | "Zone-It" | 48 | | |
| 2015 | "Art As" | | | |
| 2016 | "Plasmic Fire" (with Altima) | 19 | | |
| 2022 | "PHANTOM PAIN" (with ZYTOKINE) | | | |

## Other album appearances

| Year | Song(s) | Album |
| 2000 | "Prime" (with Aki) | Dear Feeling |
| 2000 | "Sora Yori Chikai Yume" (Second Track) | Dear Feeling |
| 2000 | "Ashita no Mukō" | Dear Feeling |
| 2002 | "Namida no Chikai" (Album mix) | Disintegration |
| 2002 | "Flow: Mizu no Umareta Basho" | Disintegration |
| 2002 | "I Can't Get Over Your Best Smile" | Disintegration |
| 2002 | "Resolution of Soul" | Disintegration |
| 2002 | "Wing my Way" (Album mix) | Disintegration |
| 2002 | "Kimi yo, Yasashii Kaze ni Nare" | Disintegration |
| 2002 | "Dirty Boots" (as Outer) | Dirty Gift |
| 2002 | "Ano Hi no Kimi e" | Onegai Teacher 2nd Vocal Album - Stokesia |
| 2002 | "Snow Angel" | Onegai Teacher 2nd Vocal Album - Stokesia |
| 2002 | "Amethyst" | Tsumamix Vocal Collection |
| 2003 | "Face of Fact" | Lament |
| 2003 | "Save Your Heart" (Album mix) (with Kaori Utatsuki) | Lament |
| 2003 | "Kageri" (Album mix) | Lament |
| 2003 | "Feel in tears" | Lament |
| 2003 | "Natsukusa no Senro" (with Kaori Utatsuki) | Lament |
| 2003 | "Lament" | Lament |
| 2003 | "Heart of Hearts" | Outflow |
| 2003 | "Close to me..." | Outflow |
| 2003 | "Sensitive" | Outflow |
| 2003 | "Change My Style: Anata no Konomi no Watashi ni " | Short Circuit |
| 2003 | "Ren'ai Chu!" (Remix) (with Kaori Utatsuki) | Short Circuit |
| 2003 | "Sakuranbo Kiss: Bakuhatsu Damo n" | Short Circuit |
| 2003 | "You're My Treasure" (Remix) (with Aki and Rimikka) | Short Circuit |
| 2003 | "Achichina Natsu no Monogatari" | Short Circuit |
| 2003 | "Magical Sweetie" | Short Circuit |
| 2003 | "Cream+Mint" | Short Circuit |
| 2003 | "Omoide wa Kaze no Naka de..." | Short Circuit |
| 2003 | "Short Circuit" | Short Circuit |
| 2004 | "Namida no Chikai" (the divine pledge of tears) | I've Remix Style Mixed Up |
| 2004 | "Boundary Line" | Silent Half Special CD |
| 2005 | "Abyss" | Collective |
| 2005 | "We Survive" | Collective |
| 2005 | "Lupe" | Collective |
| 2005 | "Imaginary Affair" | Collective |
| 2005 | "Trust You're Truth: Ashita o mamoru yakusoku" | Collective |
| 2005 | "Collective" | Collective |
| 2006 | "Allegretto: Sora to Kimi" | Kono Aozora ni Yakusoku o Special CD |
| 2007 | "Nee, ...Shiyō yo!" | Short Circuit II |
| 2007 | "Seishun Rocket" | Short Circuit II |
| 2007 | "Princess Bride!" | Short Circuit II |
| 2007 | "Atarashii Koi no Katachi" (Short Circuit Edit) | Short Circuit II |
| 2007 | "Mighty Heart: Aru Hi no Kenka, Itsu mo no Koigokoro" | Short Circuit II |
| 2007 | "Hajimemashite, Koi" | Short Circuit II |
| 2007 | "Otomegokoro tasu Nekomimi no Heihōkon wa Mugen" (with Eiko Shimamiya) | Short Circuit II |
| 2007 | "Kyururun Kiss de Jumbo" | Short Circuit II |
| 2007 | "Princess Brave!" | Short Circuit II |
| 2007 | "Maple Syrup" | Short Circuit II |
| 2007 | "Double Harmonize Shock!!" (with Kaori Utatsuki) | Short Circuit II |
| 2007 | "Synthetic Organism" (as Outer) | I've Mania Tracks Vol.1 |
| 2007 | "Hallucino" (Remix) | I've Mania Tracks Vol.1 |
| 2007 | "Time Heals All Sorrows" | I've Mania Tracks Vol.1 |
| 2007 | "L.A.M Laze and Meditation" (2001 P.V Long Arrange Mix) (as Outer) | I've Mania Tracks Vol.1 |
| 2007 | "Crossed Destiny" | I've Mania Tracks Vol.1 |
| 2007 | "Philosophy" (Proto type Mix) | I've Mania Tracks Vol.1 |
| 2007 | "Leave Me Hell Alone" (as Outer) | I've Mania Tracks Vol.1 |
| 2008 | "Suppuration -core-" (G.M.S. remix) | Master Groove Circle |
| 2008 | "Real Onigokko" (Ben Watkins from Juno Reactor remix) | Master Groove Circle |
| 2008 | "Re-sublimity" (Shiva Joerg & Hard Stuff remix) | Master Groove Circle |
| 2008 | "Uzu-maki" (Eat Static remix) | Master Groove Circle |
| 2008 | "Kisetsu no Shizuku" | The Front Line Covers |
| 2008 | "Belvedia" | The Front Line Covers |
| 2009 | "Ha!!!ppiness" (as Outer) | I’ve Mania Tracks Vol. II |
| 2009 | "Prime: "Thank you" and "From now"" | I’ve Mania Tracks Vol. II |
| 2009 | "Absurd" | I’ve Mania Tracks Vol. II |
| 2009 | "Yakusoku" | I’ve Mania Tracks Vol. II |
| 2009 | "Cave" | I’ve Mania Tracks Vol. II |
| 2009 | "Fatally" | I’ve Mania Tracks Vol. II |
| 2009 | "Seishun Rocket" (Short Circuit II Edit) (with Kaori Utatsuki) | I’ve Mania Tracks Vol. II |
| 2009 | "Akanezora: Sore ga Bokura no Sekai Datta" | Maji de Watashi ni Koi Shinasai! Special CD |
| 2010 | "Blossomdays" | Short Circuit III |
| 2010 | "Raspberry" | Short Circuit III |
| 2010 | "Crash Course: Koi no Tokubetsu Lesson" (with Kaori Utatsuki) | Short Circuit III |
| 2010 | "I need magic: Tokenai Maji Kyun" | Short Circuit III |
| 2010 | "Omamagoto" | Short Circuit III |
| 2010 | "Stars Biscuit" | Short Circuit III |
| 2010 | "Swift Love: Kenzen Danshi ni Monomōsu" | Short Circuit III |
| 2010 | "Lilies line" | Short Circuit III |
| 2010 | "Yumemishi Boom! Boom!" | Short Circuit III |
| 2010 | "Jōshiki! Butler Kōshinkyoku" | Short Circuit III |
| 2010 | "Hoshizora Interceptor" (with Kaori Utatsuki) | Short Circuit III |
| 2010 | "La clef: Meikyū no Kagi" | Extract |
| 2010 | "Restoration: Chinmoku no Sora" | Extract |
| 2010 | "A Piacere" | Extract |
| 2010 | "Oblivion" | Extract |
| 2010 | "Jihad" | Extract |
| 2010 | "Leaf Ticket" | Extract |
| 2010 | "Ketsudan no Entrance" | Extract |
| 2010 | "Onaji Sora no Shita de" | Extract |
| 2010 | "Gensō no Prism" | Extract |
| 2010 | "Hallucino" | Extract |
| 2010 | "Undying Love" | Extract |
| 2010 | "Cross Up" | I've Mania Tracks Vol. III |
| 2010 | "Loose" | I've Mania Tracks Vol. III |
| 2010 | "I Pray to Stop My Cry" | I've Mania Tracks Vol. III |
| 2010 | "Gensō no Prism" | Prism Magical Special CD |
| 2011 | "Fly to the Top" | Tribal Link |
| 2011 | "Immoral" | Tribal Link |
| 2012 | "U Make Ai Dream" | Level Octave |
| 2012 | "Genzai no Requiem" (Album mix) | Level Octave |
| 2012 | "Bloom" | Level Octave |
| 2012 | "Presto" | Level Octave |
| 2012 | "U" | Comic Market CD 83 |
| 2012 | "Wing of Zero" | Comic Market CD 83 |
| 2013 | "Kirameku Otome" | 'Nekoneko Soft' Soshite Kirameku Otome to Himitsu 5 Special CD |
| 2014 | "Wing of Zero" | Evidence Nine |
| 2014 | "Reboot On/↓0" | Evidence Nine |
| 2014 | "Soupir D'Ange" | Evidence Nine |
| 2014 | "Love Mission!!: Nanda. Tada no Koi ka" | Evidence Nine |
| 2016 | "Stardust Train" | The Time: 12 Colors |
| 2017 | "Sign of Suspicion" | Alive |
| 2017 | "Imaginary Affair" (2017 Version) | Alive |
| 2018 | "Erika" (with Tatsh) | War of Brains Original Soundtrack |
| 2018 | "Instincts Answer" | ave;new Concept Mini Album Labyrinthine Nerve |
| 2022 | "INTERNET OVERDOSE" (with Aiobahn) | NEEDY GIRL OVERDOSE official soundtrack |

## Other appearances on albums

| # | Album information | Sales | Notes |
| 1 | SxW EP (mini album) (SxW -Soul World-) (Luna Haruna Second Mini Album) To be release: February 22, 2017 Oricon top 200 position: | | The song will be collaborating with Luna Haruna |