Obanai & Mitsuri

Obanai is a young man of short stature, pale skin complexion, and a lean, muscular build. He has straight-edged raven-black hair of varying lengths, the longest reaching down to his shoulders and the shortest stopping at his cheekbones, which he wears down with two shorter strands hanging between his eyes. His eyes are almond-shaped and tilted upwards on the far sides, and are unique colored due to Obanai possessing heterochromia. Due to this, his right eye is yellow with a black pupil, and his left eye is teal. He is partially blind, barely able to see out of his right eye.[4]

Obanai's mouth is usually hidden with white bandages over his lower face to hide his large facial scars, which were the result of his family horrifically cutting open his mouth to resemble that of a snake's gape.[5]

Obanai wears the standard Demon Slayer Corps uniform, which is black in the manga and tinted a deep koamaru color in the anime. The uniform consists of a button-up jacket with a stand-up collar and long sleeves, adorned with gold buttons, a shirt pocket on the left breast, and the kanji for Destroy (滅めつ Metsu?) engraved on the back of the uniform. Beneath the jacket, he wears a white long-sleeved collared undershirt. The uniform is fastened at the waist with a white belt and paired with traditional tattsuke-hakama pants in the same koamaru hue. Over his uniform, Obanai wears his signature black-and-white vertically striped haori, with the hem and cuffs are striped horizontal ways rather than vertically, which covers his hands. For legwear, instead of the standard kyahan, Obanai wraps his lower legs in white bandages, giving the visual impression of traditional kyahan wraps. He also wears another set of white bandages around his lower face. His footwear consists of white zōri sandals with purple-blue straps, worn over koamaru-colored tabi socks to match the color tint of his uniform. He is also always seen with his white snake, Kaburamaru, wrapped around his shoulders.

Mitsuri is a curvaceous young woman of pale skin complexion, whose slender, graceful build belies her deceptive muscular strength. She stands slightly taller than average. She has large, round, bright pale green eyes with a darker green center, long black eyelashes, and many notable white sparkles reflecting light off of them, a small beauty mark beneath each of them, and light pink lipstick. Mitsuri has long and visibly thick pink hair that fades into a lime green color at the halfway point, which she wears in three thick braids. She has five shorter, choppy clumps hanging over her face as voluminous bangs, the tips lime green as well.

At the age of seventeen, Mitsuri once dyed her hair black in an attempt to appear "normal" during her second marriage proposal.

Mitsuri wears a heavily customized version of the standard Demon Slayer Corps uniform, which is black in the manga and tinted light plum in the anime. Her outfit consists of a tight-fitting button-up jacket with a stand-up collar and long sleeves, featuring gold buttons and a shirt pocket on the left breast, with the kanji for Destroy (滅めつ Metsu?) engraved on the back of the uniform. Beneath this, she wears a white long-sleeved collared undershirt. Due to the snug fit of her uniform, both the chest area of the jacket and her undershirt are left unbuttoned and open, exposing her cleavage. Instead of the standard tattsuke-hakama pants, Mitsuri wears a short pleated mini-skirt, maintaining the color and fabric style of her uniform. Her waist is fastened with the standard white belt. Over her uniform, she wears a plain white haori—a gift given to her by Kyojuro Rengoku, the Flame Hashira and her mentor.[6] For legwear, she dons a pair of lime green thigh-high stockings with vertical stripes and teal cuffs at the top. These were a gift from Obanai Iguro, the Serpent Hashira. Her footwear consists of white zōri sandals with pink straps, tied at the front in decorative bows.

While at the Swordsmith Village, Mitsuri wore a kimono with floral designs and a haori.

During her battle with Zohakuten, Mitsuri manifested her Demon Slayer Mark, located just below her neck and near her left clavicle. It appears as two red hearts positioned opposite from each other, aligned by two red teardrop-shaped spots in the middle.