Demon Seiten -Demon Sacred- (デーモン聖典)
Written by
Natsumi Itsuki
Published by
Hakusensha, Incorporated
Mankind's very survival was at stake. Frequent contact with the daemons that the incident in the world. Mona Koigusa, Rina Koigusa (twin sister) to save the "Chain" is said to be. The "chain" in order to conform to the daemon. And Mona is successful. Conform to the Daemon of the highest class.