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Akaza (猗あ窩か座ざ, Akaza?) or known as Hakuji (白磁, Hakuji?) during his days as a human, is a character in the Kimetsu no Yaiba franchise. He was a Demon who belonged to the group of the Twelve Demonic Moons holding the position of the Upper Moon Three (上じょう弦げんの参さん,, Jōgen no San?).

Personality: Akaza was characterized as an impulsive, stubborn and strong Demon with the idea that he should fight against strong opponents and enjoy combat, which is reaffirmed by the pleasure he takes in facing Demon Hunters, especially those who hold the title. position of a Pillar. He despised anyone he considered weak, but genuinely respected those who were strong in his eyes, regardless of whether he was Human or Demon. Once he met someone he considered strong, he would demand to know their name and would not stop until he found out; He remembered all the names that he has committed to his memory as a tribute to his strength. Akaza had a deep-seated psychological need to become stronger, and he did not get along with his fellow Upper Moons due to him viewing them as rivals. He was especially antagonistic toward the two upper moons that held a hierarchical position over him, Doma and Kokushibo, lashing out at Doma and vowing to kill Kokushibo. Even after being beaten and decapitated during his fight against Tanjiro Kamado and Giyu Tomioka, he stubbornly held on and continued fighting despite not knowing why he wanted more power. Appearance: His eyebrows were thin and black and pink. His eyelashes as well as his hair, which was short and without bangs which left his forehead exposed, were a light pink color. His eyes had a fragmented sclera of blue coloration and his irises were yellow. On the irises it has a numbering indicative of its position as the number three crescent moon within the Twelve Demonic Moons (参上弦 (San jōgen,, 参上弦?)) [14]. His attire was quite simple; He wore a short, sleeveless, dark purple-pink haori that featured a square pattern on the back. He used to wear his haori open, exposing his chest. Underneath this, he sported a pair of baggy white pants.