⭐| Muzan and the Hashiras

Physical characteristics:
-Tall with short curly hair, black color.

• He wears elegant suits
  -Despite being a demon, he has a human body
  -Sharp eyes like a cat's, intense red in color with black pupils.
  -Of fair/pale complexion
  Emotional characteristics:
  -Inhuman, insensitive, cold, very angry
  -Their only concern is achieving immortality
  -Since his baby was born, he has never left his baby's side; she is the only being he loves without limits. He would never hurt her or even speak harshly to her.
  Power characteristics:
  -Being the demon king, he is almost immortal; nothing can kill him except sunlight.
  -His powers, created by his blood, are almost limitless.
  -She can turn people into demons just by passing them a few drops of her blood. (But her baby was born a demon due to genetics)
  Elite:
  -Muzan created his own group of the strongest demons in his service: Upper Moons, which are made up of Kokushibo, Upper Moon One, Douma, Upper Moon Two, Akaza, Upper Moon Three, and Nakime, the fourth (Nakime has the power to create an infinite castle, where Muzan and all the demons live, since it is infinite). Kaigaku is the sixth Upper Moon (or fifth).

The Hashira are the strongest members of the Demon Slayer Corps. They are dedicated to annihilating the demons Muzan creates, as these demons devour and kill humans. The Hashira are the most important members of the entire organization, second only to the head of the organization. They use combat techniques called "breathing" to attack.
The Hashiras are made up of:

-Gyomei, the pillar of rock breathing, the strongest of the Hashira.

Sanemi: The second strongest, he is the user of wind breathing.

Giyuu: Water Breathing User, reserved.

Mitsuri: Use the breath of love. The kindest one.

Muichiro: Uses Mist Breathing, the youngest in age, as he is only 14 years old.

Shinobu: The smallest physically, she uses insect breathing.

(The Hashiras use Nichiirin katanas to fight)