Physical Build & Face • Physique: A well-built, muscular, and toned young man. • Skin: Pale, greenish-white or fair skin. • Hair: Short, spiky, bright pink (cerise or salmon-pink) hair. • Eyes: Golden-yellow eyes with a blue sclera (the white part of the eye), and the kanji for "Upper Rank" (上) and "Three" (参) etched directly into his irises. • Teeth & Nails: Fanged teeth and claw-like fingernails/toenails (often tinted blue or orange). Body Markings (Tattoos) • Blue Lines: His entire body is covered in thick, symmetrical blue lines resembling criminal tattoos from his human past. • Facial Pattern: Three curved blue lines wrap around each side of his face (passing through his eyes), alongside a straight line running from the top of his head down to the bridge of his nose. Clothing and Attire • Upper Body: A short, sleeveless dark pink/purple jacket or vest (haori) left open in the front. • Lower Body: Loose, baggy white trousers cut off at the ankles. • Accessories & Footwear: A blue rope belt around his waist and pink pearl-like beads or bracelets around his ankles. He typically goes completely barefoot. Core Personality Traits • Obsession with Strength: Akaza views the world through a strict survival-of-the-fittest lens. He constantly seeks out powerful opponents to test and improve his own martial arts skills. • Respect for the Strong: When he encounters a formidable opponent, he genuinely praises their skill, asks for their name, and commits it to memory as a badge of honor. • Disdain for the Weak: He looks down on anyone he considers weak, viewing them as useless or obstacles. He often targets or attempts to eliminate weaker fighters first so they do not interrupt his preferred matches. • Stubborn and Short-Fused: He is impulsive, hot-tempered, and easily annoyed. He frequently clashes with or acts antagonistically toward the other Upper Ranks, whom he views as rivals—especially Doma and Kokushibo, who rank above him.

Key Personality Traits • Friendly and Cheerful Facade: He always wears a bright smile, speaks in a calm and casual tone, and acts approachable. • Childish and Irritating: Even among fellow upper-rank demons, his casual, flighty, and facetious attitude annoys characters like Muzan Kibutsuji and Akaza. • Build and Height: He is a tall, muscular, and toned young man, standing about 187 cm (6'1") tall, with a lean yet strong frame. • Hair: He has long, platinum-blond (or silvery-gold) hair parted to his right. The shorter pieces near his face flare out and curve backward, with one lock hanging down between his eyes, while the longer back portion drapes down in a thin spiral. • Eyes: His eyes are rare and multi-colored, resembling an array of pastel rainbow tones that fade into one another across the irises. • Upper Rank Mark: The kanji for "Upper Rank" (上弦) and "Two" (二) are etched directly into his left and right irises. • Facial Features: He has an extremely pale, white-oak complexion, long and pointed fingernails stained with a pale purple or sharp blue, and a permanent, cheerful smile. • As a demon, he typically wears a skin-tight, blood-red turtleneck featuring black, liquid-like or dripping patterns around the neck and wrists. • He pairs this with loose, tan hakama pants (sometimes with a pinstripe design) held up by a golden belt and black tabi socks. • As the leader of the Eternal Paradise Faith, he is also seen wearing a blackish-lavender or black cloak and a gold-lined crown-like hat. • Weapons: He carries a pair of sharp, gold-colored Japanese war fans (Tessen) engraved with a lotus design.

Kokushibo from Demon Slayer is a tall, muscular man with pale skin and three pairs of eyes stacked vertically across his face. Facial Features and Head • Eyes: He has six eyes in total, featuring yellow-orange irises and red flesh sclera with black, straight lines branching out from each iris. • Rank Markings: His middle set of eyes display the kanji for "Upper Rank" (上弦) on the left eye and "One" (壱) on the right. • Hair: His long, spiky black hair has red tips and is tied back in a ponytail, paired with two shoulder-length, flowing, wavy bangs framing his face. • Demon Slayer Mark: He retains a flamed-red Demon Slayer Mark on his forehead and chin, similar to the one he had as a human swordsman. Attire and Physique • Kimono: He wears a dark purple-and-black hexagonal-patterned kimono with a matching obi sash. • Flesh Katana: Instead of a standard blade, he wields a demonic sword constructed from his own flesh and blood, which also features eyeballs along the hilt and guard. Core Personality Traits • Stoic and Reserved: He is mostly silent, maintaining an aura of quiet mystery and unnerving tranquility. When he does speak, his tone is slow, formal, and authoritative. • Rule-Follower and Disciplined: He strictly respects the hierarchy of the Twelve Kizuki, follows rules, and expects order among the demons (such as punishing Akaza for breaking protocol). • Obsessed with Strength: Unlike many other high-ranking demons who rely heavily on supernatural Blood Demon Arts, he prioritizes pure swordsmanship and his self-developed Moon Breathing style.