Koshi Tachibana wrote and illustrated Tsunako’s light novel series. It has since been made into an anime, various videogames, and three movies.
Westcott is the Managing Director of DEM and an older man with dark ash blonde hair and sharp eyes, who commands great respect among DEM’s elite wizards – they refer to him by his moniker of Sama. Although Westcott seems cold-hearted at times, as long as his plans are realized he cares little for others or anything outside himself.
Rinne is known by Shido since they were children; she frequently visits his residence to wake him up and do house chores. Rinne’s Angel, Kerubiel, first appears as a massive energy ball before turning into a cage that restrains Mayuri.