Demon Slayer Corps

The Demon Slaying Corps is an organization dedicated to protecting humanity from Demons and the killing them. There are hundreds of members in the organization, but they are not openly acknowledged by the government. The organization has existed since ancient times and have continued to hunt Demons till today.

Structure
In order to become a demon slayer, an individual must initially prepare and train in order to pass the Final Selection, a test used as an entrance exam to join the Demon Slaying Corps. During this selection, individuals must survive for 7 nights on a mountainside infested with demons without any aide from the outside world.

The students who pass the Final Selection automatically become Mizunoto ranked slayers and complete a variety of missions to reach the rank of Kinoe. Ranks are as follows:

Mizunoto→Mizunoe→Kanoto→Kanoe→Tsuchinoto→Tsuchinoe→Hinoto→Hinoe→Kinoto→Kinoe All demon slayers are given a nichirin blade, which is specialized to eliminate demons efficiently, highly durable and light weight uniforms, that cannot be damaged by minor Demons, and are assigned a Kasugai crow for communications.

Breath Styles
Swordsmanship styles practiced by slayers.

Enhanced natural abilities
All of the pillars and some of the lower ranked slayers have enhanced strength and some also have enhanced speed, stamina, agility, resistance to injury or mobility of the joints to inhumane levels.

Abilities specific to certain individuals include unconscious combat, omnipresent rage, unique muscle composition, enhanced senses and extrasensory perception.

Enhanced senses
Some slayers have naturally enhanced senses which they use in combination with existing breath styles or develop new breath styles (like Breath of Sound Style).

* his ability is referenced as echolocation

Extrasensory perception
It is manifested as a thread.
 * Ability to See-Through (Tanjirou Kamado, Tanjuurou Kamado)