Power

Childish and Selfish: She is motivated almost entirely by herself and basic desires. She has a habit of blaming others, like Denji, for her mischief and disasters. Unpredictable and Proud: Acts with extreme self-confidence before fights, but has no problem running away if she realizes she is at a disadvantage. Personal Hygiene and Pride: She is known for disliking bathing and refusing to eat vegetables, compensating for this with great pride in her abilities. Deep loyalty: Despite all his superficial chaos, his affection and loyalty to his closest friends (like Denji and Aki) end up becoming the strongest emotional core of his development in the story.

Weapon Creation: She can alter the density of her blood to forge bladed weapons. Her trademarks are a crushing Blood Hammer and a piercing Blood Spear. Traps and Projectiles: She can store her blood in containers (like bottles) and hide them around the environment to summon surprise spears or use them as blood bombs. Controlling the Blood of Others: Power can manipulate the blood of other people and demons through direct contact. She uses this to stop deadly bleeding or, conversely, to prevent enemies from healing. Accelerated Regeneration: Being a demon, she can recover from serious injuries or even regenerate completely if she consumes large amounts of blood. Strength and Speed: She possesses strength, speed, and agility far exceeding that of any ordinary human.

The Blood Demon: Originally, Power was a pure and terrifying demon known as the Blood Demon. Due to her considerable strength, she avoided direct confrontations until she managed to possess the corpse of a young human woman to live as a Fiend. Attachment to Animals: Her humanized side awakened because of her pet cat, Meowy. Initially, she rescued him only with the intention of using him as "bait" or a source of blood to feed herself, but ended up creating a deep emotional bond with the feline, changing her perspective on humans.