Akaza

Akaza is a member of the Twelve Demon Moons, holding the position of Upper Moon Three. While he was human, his name was Hakuji.

Red Light District Arc
Akaza appears before Muzan Kubitsuji and reports to him that: 1) He could not find the Blue Spider Lily and he took down one of the Pillars.

Demon Abilities
His blood demon technique work by Technique Deployment. After deploying his technique, he can use his ability to create various shock wave-like attacks.

Destructive Kill:
 * Compass Needle - Deploying a compass underneath him with numbers from 1 to 10.
 * Void Style - Punching the air, he creates a powerful multishot shockwave range attack.
 * War Style - Punching in front of him, he creates large shock waves.
 * Obliteration Style - An explosive forward jump followed by a punch that was able to go through Rengoku Kyoujurou's Purgatory attack.