Shinobu Kocho

Shinobu is a petite, young woman of slender build and is pale , which contrasts her pink lips. She had large eyes that lack pupils, her eye color is purple with white highlights on the upper irises, making her eyes appear similar to those of insects. She has black wavy hair that fades into a dark purple at the ends, styled at the back of her head into a flat yakai-maki bun fastened with a white butterfly ornament with a light purple rimmed, along with turquoise speckled spots. She had a center-split, ear-length, voluminous curtain bangs that flow down to frame the sides of her face, with two slightly thinner chin-length locks of hair in front of her ears below them. Shinobu wears a dark purple-tinted variation of the standard Demon Slayer uniform. It consists of a 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 the jacket, she wears a white long-sleeved collared undershirt. Her long, saggy tattsuke-hakama pants are also tinted dark purple and are fastened at the waist with a white belt. Her legs were wrapped with a pair of unique white kyahan—with butterfly-patterned design—that fades from pale turquoise to pink gradient around the lower legs, and tied with white ribbons. Her tabi socks match the dark purple color of her uniform.

Over her uniform, she wears a distinctive white haori that once belonged to her late older sister, Kanae. The haori features a butterfly wing pattern inspired by the Monarch Butterfly, with a color gradient that fades from white into pale turquoise and then pink on the sleeves and hem, that are cuffed with a black trim, with pale turquoise dots, resembling butterfly wing edges. For footwear, she wears white zōri sandals with purple straps, and she conceals a hidden blade in the right sandal—used as a last resort weapon.

As a Hashira of the Demon Slayer Corps, Shinobu is a very powerful and skilled combatant.Despite not possessing the physical strength to cut off a demon's head common to that of an average Demon Slayer,she used her creativity, ingenuity and techniques to easily make up for it. Instead of the traditional method of decapitating a demon with a Nichirin Sword to kill them, she opted to use a modified version of a katana that acts as a stinger to inject a powerful wisteria-based poison that is lethal to demons.In addition to her intellect, she is extremely fast and agile, allowing her to overpower demons very quickly.

Shinobu displaye a bright, friendly and cheerful demeanor, always having an easygoing smile on her face regardless of the situation she was in. However, her outward behavior was shown very quickly to be a facade. This was displayed in the way she enjoyed teasing others, to the point of being rather sardonic about it - she is shown most notably to pick on Giyu Tomioka. Despite her relaxed exterior and her initial claim of wanting to get along with demons, she could be rather cruel towards them, which was seen when she killed Daughter after giving her false hope of helping her, and immediately attempting to kill Nezuko Kamado without giving her brother Tanjiro a chance to prove that she was harmless to humans. Later on, she was shown to have a more compassionate side towards the Kamado siblings after hearing their full story. She also showed to be very strict when she needed to, as she scolded Inosuke when he breaks the window.

Insect Breathing (蟲むしの呼こ吸きゅう Mushi no kokyū?): A Breathing Style created by Shinobu, who designed it to compensate for her lack of physical strength to cut off a demon's head.Combined with the lethality of her poison

Butterfly Dance: Caprice (蝶ちょうノ舞まい　戯たわむれ Chō no mai: Tawamure?) The user leaps into the air and charges towards the opponent, stinging them multiple times with their blade to inject poison in just seemingly one strike. Dance of the Bee Sting: True Flutter (蜂ほう牙がノ舞まい　真ま靡なびき Hōga no mai: Manabiki?) The user dashes at their target at blinding speeds and uses the momentum of their speed to then strengthen a single thrust into their opponent and inject poison into them. Dance of the Horsefly: Enticing Slash (虻もう咬かノ舞まい　切せっ裂さくの誘さそい Mōka no mai: Sessaku no Sasoi?) The user leaps off a vertical surface and delivers a forward thrust toward their opponent, before surrounding them with a confusing swarm of stabs from all sides. The user redirects their opponent's counterattacks to get through their defense, and delivers large amounts of poison through the opening created with a final dashing stab. Dance of the Dragonfly: Compound Eye Hexagon (蜻せい蛉れいノ舞まい　複ふく眼がん六ろっ角かく Seirei no mai: Fukugan Rokkaku?) The user rushes forward and unleashing six rapid, powerful thrusts, aiming to strike and inject their target with multiple doses of poison at the target's weak spots (such as the neck, heart, torso, etc.) in order to kill them with a large dose of poison. Dance of the Centipede: Hundred-Legged Zigzag (蜈ご蚣こうノ舞まい　百ひゃく足そく蛇じゃ腹ばら Gokō no mai: Hyakusoku Jabara?) The user uses their full speed to run a zigzag pattern that confuses their opponent in order to create an opening for them to directly stab their opponent's neck and inject poison to kill them, with the stab's force and power being further enhanced by the momentum of their speed. Doma noted that the sheer speed and footwork of this technique is strong enough to destroy an entire wooden bridge.