Tengen Uzui

Tengen Uzui is a Demon Hunter and the Sound Pillar of the Demon Killing Corps.

Natagumo Mountain Arc
Tengen was present with his fellow Pillars when Kamado Tanjirou awoke.

Functional Recovery Training Arc
Kochou Shinobu noted that Tanjirou was on trial, but Tengen simply stated that he would cut Kamado Nezuko's head off "flamboyantly", agreeing with and repeating this latter word when Himejima Gyoumei suggests they kill her. When Tanjirou reiterated his belief that Nezuko will not harm any humans, the Sound Pillar told him not to give them lip service, but rather a more complete explanation. He then remained silent when Kanroji Mitsuri asked if they should be dealing with their subordinate's trial without Oyakata-sama's input. After Tanjirou headbutted Shinazugawa Sanemi, Tengen looked at Mitsuri when she laughed with a neutral expression.

Natural Abilities
Enhanced strength: Uzui has displayed incredible physical strength during his bout with Gyutaro and Daki, one example is him being to use his blades with great proficiency while only holding them at the tip and with only two fingers.

Echolocation:

Swordsmanship
Breath of Sound (の): A Breath unique only to Uzui. The Sound Breath is branched out from the Lighting Breath. The Breath's developed a battle strategy a Score, which involves Uzui reading his opponents movements and deconstructing them into sound, by analysing the rhythm of their movements like this he is able to take advantage of their openings to much greater effect, being able to strike at their openings similar to making the beat to a song. In conjunction with this he uses small but powerful anti-demon bombs, made with a special gunpowder, which proved capable of overpowering an Upper Moon Demon briefly.
 * 1) First Style: Thunder (ノ) - Uzui lifts his twin swords above his head and slams them down with great force creating an explosion with his bombs, causing a loud sound resembling thunder.
 * 2) Fourth Style: Death Knells of Avīci - Uzui holds his swords apart and spins them rapidly in conjunction with releasing his bombs, making this technique a combination of offense and defense.
 * 3) Fifth Style: Symphony of Shrill Strings - Uzui holds one of his swords with a reverse grip, and spins the other using the chain that connects them. He couples this by also releasing numerous bombs to detonate. This technique was able to overpower an Upper Moon demon.
 * 1) Fourth Style: Death Knells of Avīci - Uzui holds his swords apart and spins them rapidly in conjunction with releasing his bombs, making this technique a combination of offense and defense.
 * 2) Fifth Style: Symphony of Shrill Strings - Uzui holds one of his swords with a reverse grip, and spins the other using the chain that connects them. He couples this by also releasing numerous bombs to detonate. This technique was able to overpower an Upper Moon demon.

Trivia
Before Uzui became a Demon Hunter then Pillar, he was originally a Shinobi as stated by Gyutaro. In his initial design; Uzui was:
 * Less muscular with a far thinner build,
 * Had of his face covered in bandages, making iit hard for others to see what he looks like,
 * Wore sleeves due to not wanting his "arms sunburned(?)" according to the author.