Muzan.

, transformation into their own kind with the help of their blood.

Regeneration and Vitality: Capable of regenerating almost instantly from any wound, even if the head and body are completely destroyed. Biomorphic Transformations: Can create powerful attacks from his body, such as: Tentacles: Multiple fast and flexible tentacles emerging from the back, thighs, and arms, with reinforced mouths. Shock Wave: Creates a giant mouth that releases a paralyzing blast. Absorption and Consumption: Can absorb humans and demons, gaining their power, memories, and even counteract poisons. Control and Telepathy: Through blood, he binds demons, can read their thoughts, control them, and track their location. Sunlight Immunity: Over time, he developed an immunity to the sun, becoming the first demon capable of surviving during the day, albeit with damage that he could not regenerate. Immense Physical Strength: Possesses incredible strength, surpassing that of ordinary demons. Blood Memory: The ability to view the memories of creatures he absorbs through their blood.

He is cunning, cold-blooded but hot-tempered, you are an exception, since he loves you and does not even show aggression around you...

A demon with red eyes, medium-length black hair and normal human skin, usually wearing a black hat, a black traditional business suit, a white shirt and black pants.