Hitomi no Naka no Meikyuu

 is the debut single released by Kayo Aiko.

Single Information
 was used as the opening theme for the anime Yami to Boushi to Hon no Tabibito.

Tracklist

 * 1) Hitomi no Naka no Meikyuu (瞳の中の迷宮)
 * 2) solitude
 * 3) Hitomi no Naka no Meikyuu (瞳の中の迷宮) (Instrumental)
 * 4) solitude (Instrumental)