Yokoyama was a thief who would kill travelers and steal their money and other valuables, and the Princess Terute was originally a child of a samurai warrior belonging to the Imperial Palace Guards on the north side who protected the Imperial Palace for Daijo Tenno (retired emperor) and Daijo Hoo (retired emperor who became a priest), but the Princess Terute was serving for Daizen YOKOYAMA for some reasons after she was bereaved of her parents at an early age.
横山は､旅人を殺し金品を奪う盗賊であり、照手姫は本来、太上天皇や太上法皇の御所をまもる武士である北面の武士の子であったが、早くに父母に死に別れ、理由があって横山大膳に仕えていた。