The hashiras are nine of the most powerful swordsmen in the demon slayer corps. Also known as pillars, they are the most top ranking, powerful soldier pitted against the main antagonist of the story Muzan Kibutsuji.
There are 9 hashiras, and each hashiras are highly skilled in using specific “special powers” their breaths. While each of them has one breath unique of their own, developed and learned through rigorous training. The breaths are of elemental types meaning fire, water, wind, rock, At times few swordsmen have dual breath abilities too! It has been noted that if a swordsman knows both fire and water breaths he is bound to be a hashira without any exceptions!
How to be a hashira?
To be a member of the Hashira, a Demon slayer candidate must be among the strongest combatants in the entirety of the Demon Slayer Corps. There are two known methods that allow one to prove that they are worthy of becoming a Hashira
the first method is to accumulate a demon kill count of at least 50
the second method is to slay a demon who is a member of the Twelve Demon Moons, the 12 strongest of all demons who serve directly under the Demon Lord, Muzan Kibutsuji.
The effort required to achieve either of these methods requires almost five years worth of training, though, the talented might take only two or so years to do so.
Choosing of a successor?
At times, a current hashira can choose a successor too! The successor know as tsugo, is for an exceptionally talented demon slayer member. To apply for it you’d have to apply for the position or get scouted by a current hashira.
The Hashira Training is a special training session conducted by the Hashira and undertaken by numerous lower ranked Demon Slayers. The aim of Hashira Training is to improve all Demon Slayers’ physical abilities and overall health, giving the members of the Demon Slayer Corps a better chance of winning the war against Demons.
Each of the Hashira oversees a different part of the training program. Known training includes: basic stamina training, flexibility training, quick movement training, sword skill training, pounding training, and muscle reinforcement training.
Hashira Training is extremely strenuous; because of this, a majority of the Demon Slayers view the training session as an everlasting trip in hell, with a few notable exceptions who see the session as a chance to improve themselves.
As a general rule, Hashira must take part in each other’s training sessions. It is considered a win-win situation for both the Hashira and the Demon Slayers, as even the Hashira get to improve due to being constantly attacked by wave upon wave of juniors ranked lower than themselves.