Kotoko - Oboetete Ii Yo

Kotoko - Achichi na Natsu no Monogatari

Kotoko - Agony

Kotoko - Allegretto ~sora to kimi~

Kotoko - Dudiduwa Lalala

Kotoko - Miruku

Kotoko - Re-Sublimity

Kotoko - You're my treasure

Kotoko - ε~Epsilon~

Kotoko - 421 -a Will-

Kotoko - A Piacere

Kotoko - absurd

Kotoko - Akai tama, aoi tama

Kotoko - amethyst

Kotoko - Ano Hi no Kimi he

Kotoko - ao-iconoclast

Kotoko - Aoi Jeep de

Kotoko - Ashiato

Kotoko - Asu e No Namida

Kotoko - Asura

Kotoko - Beat

Kotoko - being

Kotoko - Beta-Nendo no Hoshi

Kotoko - Blaze

Kotoko - Blossomdays

Kotoko - Bright wings

Kotoko - BUCCANEER

Kotoko - bumpy-Jumpy!

Kotoko - Capriccio ~ Kokoro wa itsumo kumorinochi hare~

Kotoko - Cave

Kotoko - Change my Style ~Anata konomi no watashi ni~

Kotoko - Chercher ~sharushie~

Kotoko - Chi ni Kaeru

Kotoko - Cider

Kotoko - Close To Me

Kotoko - Command+S

Kotoko - Cream+Mint

Kotoko - Daily-daily Dream

Kotoko - Damare yo, Peter

Kotoko - Digital Snail

Kotoko - Double Harmonize Shock!!

Kotoko - Face of Fact

Kotoko - Fatally

Kotoko - Free Angels

Kotoko - Frozen Fir Tree

Kotoko - Fuchidori no Sekai

Kotoko - Fushi-Gino-Ana

Kotoko - Fuyu no Shizuku

Kotoko - Garasu no Kaze

Kotoko - Genei

Kotoko - Genzai no REKUIEMU

Kotoko - Goodbye Dear

Kotoko - Gratitude ~Ooki na Kuri no Ki no Shita de~

Kotoko - HALLUCINO

Kotoko - Hane

Kotoko - Hayate no Gotoku!

Kotoko - Hayategumo

Kotoko - Hekira No Sora He Izanaedo

Kotoko - Hirake! Sora no Oto

Kotoko - Hitoribocchi no ai

Kotoko - Hitorigoto

Kotoko - I can't get over your best smile

Kotoko - I pray to stop my cry

Kotoko - I-DOLL ~song for eternity~

Kotoko - Imaginary affair

Kotoko - Immoral

Kotoko - Inside Of a Wilderness

Kotoko - Iruka

Kotoko - Itai yo

Kotoko - Jihad

Kotoko - Jumping Note

Kotoko - Kaede No Michi

Kotoko - Kanariya

Kotoko - Ketsudan no Entrance

Kotoko - Kikoeru

Kotoko - Kimi to Yume wo Shinjite

Kotoko - Kimi yo, yasashii kaze ni nare

Kotoko - Kirei na Senritsu

Kotoko - Koe ga Todoku Nara

Kotoko - Kohaku

Kotoko - Lament

Kotoko - Lament (translation)

Kotoko - Largo

Kotoko - Leave Me Hell Alone

Kotoko - Light My Fire

Kotoko - Little Baby Nothing Feat. Kazuya Takase

Kotoko - Loop-the-loop

Kotoko - Love A Riddle

Kotoko - Love Letter

Kotoko - Meconopsis

Kotoko - Message

Kotoko - Metal Link

Kotoko - Mirabilis

Kotoko - Mirai Ressha

Kotoko - Mirror Garden

Kotoko - Monera no Kizuna

Kotoko - Moshimo...

Kotoko - My-Les

Kotoko - Namida no Chikai

Kotoko - Natsukusa no senro

Kotoko - Now and heaven

Kotoko - Omoide wa Kaze no Naka de...

Kotoko - Onaji Sora no Shita de

Kotoko - Philosophy

Kotoko - PhuLa-PhuLa

Kotoko - Pigeon The Green-ey'd Monster

Kotoko - Plasmic Fire

Kotoko - Presto

Kotoko - Prime

Kotoko - Princess Bride!

Kotoko - Raimei ga Naku Koro

Kotoko - Real Onigokko

Kotoko - Ren'ai CHU!

Kotoko - Resolution of soul

Kotoko - Restart

Kotoko - Restoration: Chinmoku no Sora

Kotoko - Retrieve

Kotoko - Sa.yo.na…ra

Kotoko - Sakura No Ame No Egito No Yo

Kotoko - Sakuranbo Kiss ~Bakuhatsu da Mon-d~

Kotoko - Sasakure

Kotoko - Save Your Heart

Kotoko - Screw

Kotoko - Second Flight

Kotoko - Sekka no Shinwa

Kotoko - Sensitive

Kotoko - Shasou No Shirabe

Kotoko - Shichitenhakki Shijou Shugi!

Kotoko - Shooting Star

Kotoko - Short Circuit

Kotoko - Sledgehammer Romance

Kotoko - snIpe

Kotoko - Snow Angel

Kotoko - Sociometry

Kotoko - Sora Yori Chikai Yume

Kotoko - Sore Ga Bokura No Sekai Datta

Kotoko - Special Life!

Kotoko - Stars Biscuit

Kotoko - Suppuration

Kotoko - Sweet Songs Ever With You

Kotoko - Time rolls on...

Kotoko - Tough Intention

Kotoko - TR∀NSFoRM

Kotoko - TRILL

Kotoko - TRUE-BLUE

Kotoko - Trust You're Truth

Kotoko - Unfinished

Kotoko - Unsymmetry

Kotoko - UZU-MAKI

Kotoko - WATASHI wa UTA ga HETA

Kotoko - We Survive

Kotoko - We Survive (translation)

Kotoko - Wing My Way

Kotoko - World With Me

Kotoko - X-kai-

Kotoko - Yume wo Motomete...

Kotoko - Yumemiboshi★boom!boom!