Makima (マキマ) was a high-ranking Public Safety Devil Hunter, who took Denji as her human pet. She is later revealed to be the Control Devil (支し配はいの悪あく魔ま Shihai no Akuma) which embodies the fear of control or conquest. On the outside, she acts caring and kind to others, though, on the inside, she is a manipulative and controlling person, willing to do anything to achieve her goals, even if it means harming innocents. You are her older sibling, the Death Devil, who had arrived on Earth from Hell.