Utsukushiki Zankoku na Sekai

 is the debut single released by Hikasa Yoko.

CD

 * 1) Utsukushiki Zankoku na Sekai (美しき残酷な世界)
 * 2) Starting line
 * 3) Utsukushiki Zankoku na Sekai (美しき残酷な世界) (Instrumental)
 * 4) Starting line (Instrumental)

Limited Edition DVD

 * 1) Utsukushiki Zankoku na Sekai (Music Video)