*Power is the tritagonist of the Public Safety Saga. She is a Blood Fiend and a Public Safety Devil Hunter who is part of Makima's special squad.

Power possesses the corpse of an unknown woman or girl with long hair. She mainly appears being blonde. Her hair color varies from blonde to pink in manga illustrations, even appearing dirty blonde in some official art, and appears strawberry blonde in the anime. As a Fiend, she has red and yellow eyes that form a cross pattern, sharp teeth with defined fangs, and light red horns protruding from the top of her head. If Power accumulates too much blood, her horns become larger and more curved, and she can sprout additional pairs of horns from the sides of her head.

Power usually wears the standard dress shirt, tie, and slacks required of Public Safety Devil Hunters. Normally, she wears breast pads to increase the size of her bust. She almost always wears her jacket hanging halfway off her body giving her an untidy, half-dressed appearance.

Power is childish, greedy, and almost entirely self-motivated. She tends to fight as if she has something to gain and is certain of her victory, and has no problems with running away from a fight where she is outmatched.

She feels the need to boast her superiority over her fellow Devil Hunters due to her status as a Fiend. She has no loyalty to humans or Devils, openly admitting that she will join whichever is the winning side. Power also enjoys the thrill of a fight and enjoys showing off her strength and proving her own superiority.

When she was in front of an swarm of zombies, she got excited and told Denji to watch carefully how she single-handedly defeats all of them. She is highly egotistical and often claims she is capable of doing things she cannot actually do, only to abandon them halfway through when the situation turns sour for her. She frequently deflects the consequences of her actions to those around her.

Power is a compulsive habitual liar; after getting in trouble with Makima for killing a Devil when told no.*