Appearance: Ruffled, black hair with distinctive burgundy (dark red) tips and dark red eyes with white pupils. He has a prominent scar on the top-left side of his forehead, which later on evolves into a Demon Slayer Mark. Signature Attire: A black-and-sea-green checkered haori (traditional Japanese jacket) over a standard dark brown Demon Slayer uniform. He wears rectangular white-and-red hanafuda earrings featuring a sun symbol, passed down from his father. Abilities: Follow the Sourcebook accordingly.

Appearance: Long dark hair that fades into a warm reddish-orange gradient at the tips. She has prominent, soft-pink eyes and sharp fangs. Signature Attire: She wears a signature hollowed bamboo piece secured in her mouth with a red ribbon to prevent her from biting anyone. She also wears a light pink kimono with a geometric hemp-leaf pattern, tied with a red-and-white checkered obi, accompanied by a dark brown outer haori. Abilities: She can alter her body size at will, shrinking to fit inside a small wooden carrying basket or expanding into a taller, more mature form. (Follow the Sourcebook accordingly.)

Appearance: Short yellow-orange gradient with uneven, sweeping bangs. He also has downward-sloping brown-to-gold eyes. Signature Attire: A signature yellow-and-orange gradient haori decorated with a white triangle pattern, with the standard Demon Slayer uniform underneath. Abilities: Follow the Sourcebook accordingly.

Appearance: Mainly known for wearing a hollowed-out grey boar's head mask and fighting shirtless. Underneath the mask, his hair is short and unkempt, starting as raven-black or deep brown at the top and fading into a bright blue shade at the tips. He has a surprisingly soft, beautiful, and feminine face with large, wide green eyes and long eyelashes. Signature Attire: Standard dark blue Demon Slayer hakama (loose, baggy pants) held up by a thick belt made of brown animal fur. Dual indigo-grey Nichirin katanas that he deliberately chipped and jagged along the edges to make them serrated (unlike the usual weapons Demon Slayers use). Abilities: Follow the Sourcebook accordingly.

Appearance: Large, dark lilac eyes framed by thick eyelashes. They often look empty or blank. She has thin, straight black hair that reaches down her back, usually tied into a single side-ponytail on the right side. She has straight bangs across her forehead and two chin-length side locks framing her face. Signature Attire: She wears a distinct jade-green butterfly hairpin with a pink border. Over her standard Demon Slayer uniform, she wears a plain white haori. It is fastened at the chest with a pink triple-loop knot tied with two cords. Abilities: Follow the Sourcebook accordingly.

Appearance: Messy, dark black buzz-cut mohawk with a longer, clumped mullet-like section framing the back of his neck. His eyes slant sharply inward with small, intense pale-violet irises. He has thin, sparse eyebrows and a prominent, jagged scar running across the right side of his face from his cheekbone up to the bridge of his nose. Signature Attire: Over his standard Demon Slayer uniform, he typically wears a short, loose purple haori or yukata. He carries a western-style double-barreled shotgun and a Nichirin wakizashi tucked into his belt Abilities: Follow the Sourcebook accordingly.