Koyasu Takehito (Weiss Kreuz) - House of Love
Koyasu Takehito (Weiss Kreuz) - Someday
Koyasu Takehito (Aya) Weiss Kreuz OST - Blue Mask
Weiss Kreuz Gluhen - Koyasu Takehito & Seki Tomokazu & Miki Shinichiro & Yuuki Hiro - Tomorrow
Weiss Kreuz Gluhen -Koyasu Takehito.Seki Tomokazu & Miki Shinichiro & Yuuki Hiro - Tomorrow