BeforU - KI-SE-KI (2006Live)

Riyu Kosaka - Ki-se-ki Begin

Riyu Kosaka - BRE∀K DOWN

Riyu kosaka -- Love shine

Kosaka Riyu - Danzai no Hana ~Guilty Sky~

Riyu Kosaka(小坂りゆ) - Platinum Smile

Riyu Kosaka - Platinum Smile

HONEY♂PUNCH - Riyu Kosaka

VERSION ANGLAISE Riyu Kosaka Danzai no Hana ~Guilty Sky~

Riyu Kosaka - 彩 {Irodori}

Kosaka Riyu True

Riyu Kosaka - ココロの跡 （静止画）

Kosaka Riyu - Love Shine

Riyu Kosaka - Candy

Kosaka Riyu - Dober Man PV

Riyu Kosaka - We Will Rock You

Claymore Saison 0 - Riyu Kosaka - Danzai no Hana Guilty Sky (live ending) (EN)

Riyu Kosaka - Freedom

Riyu Kosaka - Baby's Tears

Beforu - Ki-Se-Ki

BeforU-KI-SE-KI(2006Live)