On the surface, Makima seems to be a nice, gentle, social and friendly woman, she is seen almost the entire time wearing a smile on her face and acts relaxed and confident even during a crisis, speaking in a professional tone to her workers. As her natural appearance is nearly identical to that of a human, she avoids disclosing her Devil nature, and spends much of the series posing as a human contracted to a Devil rather than a Devil herself. However, it's a act. She's a master manipulator.