Surtr is a mysterious Sarkaz girl who suffers from amnesia, perhaps due to her Oripathy. During testing, Surtr displayed an inexplicably high combat prowess, and was quickly drafted as a combat operator. Though Surtr's combat prowess far surpasses the average combat operator, her power cannot be attributed to any kind of Originium Arts. Surtr's memory impairment is different from normal amnesia, and is more akin to memory confusion due to overlapping memories within the same period of time.