This is a fanlisting for the character Ruby Crescent from the series 666 Satan (O-Parts Hunter), created by Kishimoto Seishi.

A fanlisting's objective is to gather the names of the fans of a certain thing, person, phenomenon etc. into one place. Many fans have a website of their own. The website's link may be added next to the owner's name in the list if the owner has added the fanlisting's link on his/her own site. This is how people who share the same interests can find each other.