Haruka Amagiri 天霧 遙

Ayato's older sister. She is the one that taught Ayato the family fighting style. She entered school five years prior to Ayato's entrance to Seidoukan Academy but disappeared half a year later. She also participated in the unofficial underground Eclipse tournament. She once wielded the Ser-Versta; however, all records of her and including those pertaining to Lux have been erased.