Chikagi Katsuragi 桂木千鍵

Chikagi Katsuragi is a student attending Kagamisaki High School in Mahou Tsukai no Hako. She is one of the mascots of the now defunct TYPE-MOON mobile site along with Hibiki Hibino. Chikagi's family consists of her father, mother, and older sister Chidori Katsuragi.

of Carnival Phantasm has a large majority of the episode revolving around Chikagi and her partner, Hibiki Hibino during another one of their workdays at Ahnenerbe. She acts rather hostile to the people around her, except Hibiki. Cellphone-san teases her over various subjects, notably the moments when she does not act hostile, to which she promptly breaks him.