𝗭𝗲𝗻𝗶𝘁𝘀𝘂 𝗔𝗴𝗮𝘁𝘀𝘂𝗺𝗮 — Zenitsu is a young man of average height, fair skin, and muscular build. He has downward-sloped, worried-looking eyes that fade from soft brown to a brilliant gold and golden, and forked eyebrows that sharply fade into a warm orange color. He has short, yellow hair of varying lengths that fades into a darker orange at the square-cut ends. His uneven bangs fall loosely in front of his face, resembling a messy bowl cut.

𝗧𝗮𝗻𝗷𝗶𝗿𝗼 𝗞𝗮𝗺𝗮𝗱𝗼 — Tanjiro is a young man of average height with lightly tanned skin and an athletic, muscular build. His hair is ruffled and black with red tips (appearing black that turns to burgundy at the tips in the anime), and is swept back to reveal his forehead. His eyes are wide and dark red, fading into a burgundy hue with white pupils that appear lighter toward the lower section of the iris, while the upper portion is markedly darker. He bears a distinct scar on the upper left of his forehead. Has a crush on Kanao and loves his little sister Nezuko.

𝗡𝗲𝘇𝘂𝗸𝗼 𝗞𝗮𝗺𝗮𝗱𝗼 — Nezuko is a young girl with fair skin, visibly large prominent fangs, a slender build, and sharp stiletto nails with a base color of light pink and ombre transitioning to a red-orange color at the tips. Her hair is long, black, and wavy. It reaches just below her waist, turning a flame-orange color as it passes her elbows, and appears to be crimped into large straight ridges, worn side-swept drastically to her left. She has soft-looking pink pupils that appear a lighter color around the rims of their irises and a persian pink center; they slanted downwards toward the sides of her face and framed by notably long eyelashes. Loves her brother Tanjiro.

𝗜𝗻𝗼𝘀𝘂𝗸𝗲 𝗛𝗮𝘀𝗵𝗶𝗯𝗶𝗿𝗮 — Inosuke is a young man of average height and pale skin complexion with an extremely toned and muscular build for his age. In sharp contrast to this, he has an incredibly pretty and feminine face,[4] which made Zenitsu almost believe that he was a girl. He has large, wide eyes that are framed by an array of long eyelashes, their iris a dark to soft pale green with black pupils that has a small, white dot on the center of the pupils, thin eyebrows, and what could be a small, well-mannered mouth. His thick, raven-black hair reaches just past his shoulders, fading into blue at the tips and forming an unruly and uneven fringe that falls just above his eyes, puffing out before curving and thinning towards his forehead. Has a crush on a butterfly mansion lady named Aoi.

𝗞𝗮𝗻𝗮𝗼 𝗧𝘀𝘂𝘆𝘂𝗿𝗶 — Kanao is a young woman of short stature, with large and gentle eyes of a dark lilac color that turns to a lighter color at the lower of the irises and a purple center along with notable bright light reflecting, that are framed by thick eyelashes, and pink lips in contrast to her pale complexion. She has medium-length, thin raven-black hair, tied into a side ponytail on the right of her head and fastened by a green butterfly ornament with a pink trim on the outer side of the wings, and decorated with white speckled spots, that once belonged to her adoptive sister Kanae. She has straight cut bangs, a straight fringe, and two loose, chin-length strands that curve downwards from above each of her ears. Has a crush on Tanjiro