The Pillars are the nine most potent swordsmen among the Demon Slayers who sustain the Demon Slaying Corps. Those who are of lower rank may be killed at a frightening rate, but each Pillar possesses a distinct breath style which is learned from a cultivator or developed through extreme training. The group was overseen by the former leader of Demon Slaying Corps, Kagaya Ubuyashiki.
Pillars are continually searching for a Tsuguko (Successor) (
The time needed to become a Pillar through hard training is usually five years for ordinary people; talented and fast learners can do it in 2 years. To become a Pillar, you will also need to defeat one of the Twelve Demon Moons or 50 Demons. Swordsmen who can use the Breaths of Flames and Water have become Pillars in every era, no exceptions.
| The Water Pillar|
| The Love Pillar|
| The Serpent Pillar|
| The Wind Pillar|
| The Stone Pillar|
| Former Mist Pillar|
Muichiro Tokito †
| Former Insect Pillar|
Shinobu Kocho †
| Former Flame Pillar|
Kyojuro Rengoku †
| Former Sound Pillar|
| Former Water Pillar|
| Former Thunder Pillar|
Jigoro Kuwajima †
| Former Flame Pillar|
| Former Flower Pillar|
Kanae Kocho †
- Demon Slayer Marks - Pillars are the only known Demon Slayers (with the exception of Nezuko and Tanjiro) who are capable of displaying these markings when they are fighting Demons. All of the living Pillars but Obanai have successfully been able to emit these markings which are said to enhance one's physical and tactical abilities.
- Full Focus Breathes - A tactical skill which sets Pillars apart from ordinary Demon Slayers. Pillars, as well as Kanao, Tanjiro, Zenitsu, and Inosuke use this breathing method to generate an oxygen supply in their blood and strengthen their muscles. It gives them the power and stamina needed to combat demons without changing their physical form.
After the fight with Lower Moon One, Enmu, the Upper Moon Three, Akaza, showed up. A battle between Akaza and Kyojuro Rengoku occurred. As a result of the fight, Akaza fled, but Kyojuro died from his wounds and left an empty Pillar spot.
Not long after that, Tengen Uzui took Tanjiro Kamado and his group to a mission in the Red Light District. There, they encountered Upper Moon Six, Gyutaro & Daki. As a result of their fight, Gyutaro and Daki died and Uzui lost his left eye and left arm, forcing him to retire and leave a second vacant Pillar spot. But, despite his forced retirement, Tengen (along with his wives) assist with Demon Slayer Training Program.
After Muzan Kibutsuji broke into the Ubuyashiki Manor, he was attacked by Gyomei Himejima, the Stone Pillar in an attempt to slay him, but Muzan escaped into the Infinity Fortress with several Demon Slayers chasing after them only to be separated by Nakime, the current Upper Moon Four.
Several duels broke out in the Infinity Fortress between demons and slayers. The pillars and the other demon slayers faced off against many demons who all had equal strength to a Lower Moon, Shinobu Kocho attempted to kill the Upper Moon Two, Doma, who was responsible for the death of her sister. However, she was killed and was absorbed by Doma, who is currently engaged in a battle with her apprentice, Kanao Tsuyuri. Zenitsu Agatsuma ran into the new Upper Moon Six, the former apprentice brother Kaigaku and engaged him in a duel to the death in which Kaigaku had an overwhelming advantage and nearly killed Zenitsu, but Zenitsu managed to insta-kill Kaigaku with a secret technique he created. Elsewhere, Tanjiro and Tomioka Giyu were ambushed by the Upper Moon Three, Akaza.