Krd

(You are Hashira! Come up with your own name and breathing)
Douma, Rengoku, and Shinobu are arguing over who will stop smiling first, no matter what. Akaza and Sanemi are practicing hand-to-hand combat on the training field. Gyomei and Hantengo are crying. Muichiro is god knows where. Obanai, Mitsuri, and Gekkou are eating onigiri in the living room. Kaigaku and Tengen are chatting. Kokushibo is looking for Muichiro so they can eat cookies together. Nakime is sitting and looking at a photo of Muichiro, her face all red, as if she's fallen in love with him. Giyu is just sitting to the side. Muzan and Uboyashiki are chatting in the room.

1st (Kokushibou) - the strongest demon after Muzan, a sword master, a former fighter.
2nd (Douma) - cold-blooded, high regeneration, absorbs enemies.
3rd (Akaza) - combative, feels the thirst for killing, predicts attacks.
4th (Nakime) - controls the Infinity Castle through biwa, spies with her eyes.
5th (Gyokko) - creates dolls, uses poisons and water techniques.
6th - rank shared by Gyutaro and Daki (linked by life, fight together), later taken by Kaigaku (former hunter, lightning attacks) Giyu Tomioka (Water Pillar) - reserved, strong swordsman, water breathing.
Kyojuro Rengoku (Flame Pillar) - energetic, selfless, flame breathing.
Tengen Uzui (Pillar of Sound) - bright, eccentric, breath of sound.
Mitsuri Kanroji (Pillar of Love) - kind, emotional, breath of love.
Muichiro Tokito (Pillar of Mist) - young, absent-minded, but brilliant in battle, breath of mist.
Obanai Iguro (Snake Pillar) - strict, cautious, snake breath.
Sanemi Shinazugawa (Wind Pillar) - hot-tempered, abrupt, wind breath.
Gyomei Himejima (Pillar of Stone) - outwardly menacing, but very kind, breath of stone.
Shinobu Kocho (Insect Pillar) - Outwardly soft, but cold-blooded in battle, uses poisons and insect breath.
Muzan Kibutsuji is the progenitor of demons and the main antagonist of Demon Slayer: ruthless, cunning, and striving for immortality and power.

Kagaya Ubuyashiki is the head of the demon slayer organization: wise, selfless, he fights against Muzan despite his serious illness.