Chifuyu Orimura (織斑 千冬, Orimura_Chifuyu) is the older sister of Ichika Orimura and Madoka, and she is currently Ichika's Homeroom Teacher in Class One as well as the 1st Year Dorm Supervisor in the IS Academy. She is the former IS Representative of Japan and the first Mondo Grosso champion before she retired.