Zenitsu Agatsuma

Zenitsu Agatsuma (我妻善逸 Agatsuma Zen'itsu?) is a Demon Slayer and member of the Demon Slaying Corps. He is a traveling companion of Tanjiro Kamado and one of the main protagonists of Demon Slayer: Kimetsu no Yaiba. Zenitsu is a young man with fair skin and downward-sloped, scared-looking eyes that fade from soft brown to gold. He has short, yellow hair of varying lengths, cutting off squarely at the ends where it fades to a darker orange color, that falls in front of his face in uneven bangs. Before he became a Demon Slayer, Zenitsu's hair was originally black, but it turned the color it is currently when he was struck by lightning during his training. For a period of time following the battle at Natagumo Mountain, his limbs were temporarily shrunk due to Demonic poison, but were able to return to normalcy afterward thanks to the medicine given to him by Shinobu Kocho. He wears a paler brown version of the standard Demon Slayer uniform, which consists of a dark brown gakuran jacket, a white belt around his waist and hakama pants that extend, as well as his signature white-triangle patterned, yellow and orange gradient haori.

As well as this, Zenitsu also sports a pair of tabi socks, tied at the front in 3 white bows, with the same pattern as his haori, and white-laced footwear. Zenitsu is a coward; always claiming he doesn't have long to live due to the dangerous job of being a Demon Hunter. He also has rather low self-esteem despite his strength, to the point that he thinks he's actually useless, as seen when he couldn't believe he'd slain a Demon that he had, tricking himself into instead believing that it was Shoichi even though the latter was a young child who didn't possess any form of special Demon-slaying ability. Zenitsu is in a constant state of fear and always cries and tries to run away at the sight of danger, claiming he wants to live a modest, normal life, instead of that of a Demon Slayer in which he just thinks he's useless all the time. However, despite these weaknesses, Zenitsu still wants to live up to the expectations others set up for him and will try his hardest when he is needed to. He holds great respect and admiration towards his comrades and his deceased teacher, Jigoro Kuwajima, and his inner focus and drive in avenging him always help to wash away his cowardice and second thoughts when he's in a pinch.

Zenitsu is also shown to be something of a wannabe womanizer; he tends to hit on girls who he thinks are cute and ask them to marry him, much to their annoyance. This womanizing nature is shown to override his docile personality, in particular when he believes his comrades are "flirting" with cute girls, he soon snaps and goes in long hysterical rants and complaints. During these times he's also shown to become physically aggressive, lashing out that them in frustration. Zenitsu's surname means "my wife" (我妻?), while his given name means "goodness" (善逸?). Zenitsu has a heightened sense of hearing, allowing him to detect danger from even the faintest of sounds. He is also able to hear the inner thoughts of people if he uses the sense of hearing to its fullest potential, and he can also use this ability to aid him in locating Demons by comparing the sounds produced by a Demons' body to those produced by a human. Zenitsu becomes stronger when he sleeps. When his life is in danger, the fear he experiences exceeds his limits and makes him fall unconscious, which is when he reaches his true potential; when Zenitsu is asleep, he can perform his swordsmanship at a high level based purely on instinct alone. However, as the story goes on, he continues to improve his skills and courage and depends on this ability less and less, beginning to showcase the same skill and ability when conscious.

Nezuko Kamado

Nezuko Kamado (Kamado Nezuko) is the younger sister of Tanjiro Kamado and one of the two remaining members of the Kamado family. Formerly human, she was attacked and turned into a Demon by Muzan Kibutsuji. She is one of the main protagonists of Demon Slayer: Kimetsu no Yaiba. Nezuko is a petite young girl with fair skin, visibly large, prominent fangs, and sharp, claw-like nails that fade to red where they point. Her hair is long, dark brown and reaches just below her waist, turning an vermilion color as it passes her elbows, and appears to be crimped into large, straight ridges, worn sideswept drastically to her left. She has soft-looking, pale pink eyes that appear a lighter color around the rims of their irises, slanted downwards towards the sides of her face and framed by notably long eyelashes, the pupils of which can appear slit as she transforms. According to Tanjiro Kamado, Nezuko was known as a great beauty in their home town. She wears a light pink kimono with a geometric triangle pattern, the lining a paler pink, with a red and white checkered obi and a thin piece of orange thread looped and knotted around her waist, another band of green above it. Over this, she sports a long, dark brown haori that reaches past her knees, as well as pink zori sandals and white socks, wrapped with thick pieces of black material. Nezuko also wears a small pink ribbon to the left of her head, to keep her hair out of her face, and the bamboo gag Giyu Tomioka gave her, which is secured around her jaw with a strip of red cloth. As a human, she had a very similar appearance, the only differences being her lack of Demon-like traits, vermilion hair and pale pink eyes. Instead, Nezuko had fully black hair, worn tied back in three low buns, decorated by pink ribbons, and eyes of a dark red color that only appeared pale pink around their lower irises.

She wore the same kimono, just without her haori and with a large sheet of white cloth tied around her, which she used to carry her little brother, Rokuta Kamado, on her back. Nezuko's original personality as a human was that of a kind and caring girl, who thought of others before herself much like her older brother, Tanjiro, and was a responsible elder sister to her younger siblings. As a Demon, however, Nezuko seems to have forgotten a good portion of her memories as a human, besides those related to her family, and thus doesn't retain the exact personality she had before transformation. She is still very caring and protective towards humans who she sees as members of her family, although this is mainly due to the influence Sakonji Urokodaki had on her while she was asleep for two years. Nezuko also retains some of her human emotions, as she has been seen to cry when sad and smile when happy, but in general she appears more detached than her human cohorts, although she is still much calmer and less malicious than most Demons. Since becoming a Demon, Nezuko appears to have become also rather brazen, and does not seem to fear fighting; she fiercely guards her brother as well as her allies. She has also developed a strong willpower, which can be seen through her refusal to consume human flesh or blood, even in cases of extreme injury or exposure to human blood, which can be seen when she refuses Sanemi Shinazugawa after he attempts to lure her into biting him with his Marechi blood.

On the rare occasion that Nezuko attempts speech, she has been seen to stutter a lot, which may be due to her bamboo mouthpiece, which is seldom removed, and the fact that she didn't speak for a number of years after her transformation. However, After developing resistance towards sunlight, which allows her to go outside and interact with others more often, her speech has shown signs of improvement and she is able to fully pronounce words if someone else has just spoken them, or hears them repeated frequently enough. Nezuko grew up on a mountain alongside her older brother, Tanjiro, and the rest of her siblings and mother, as the eldest daughter of the Kamado family. She presumably took care of her younger siblings as an assistant to her mother, as is briefly witnessed prior to her family's death. Unlike Tanjiro, who was responsible for selling firewood in town, Nezuko would usually help out around the family home. The family was somewhat poor and, as a result, Nezuko sometimes had to go without things like new clothes in order to ensure that the rest of her siblings had enough food to eat. She did not appear to view this as a burden, and instead was simply just content with helping her family. Alone, the first kanji of Nezuko's surname is a traditional Japanese wood or charcoal-fuelled cookstove/furnace (竈 kama?), while the second means "door" (門 do?). The first part of her first name means "red bean" (禰豆 nezu?), and is also part of the Japanese word for a flower, the Japanese Snowball (五禰豆 gonezu?). The second part is a common female name suffix, which translates to "child" (子 ko?).

Tanjiro Kamado

Tanjiro Kamado (Kamado Tanjirō?) is the main protagonist of Demon Slayer: Kimetsu no Yaiba. He is a Kanoe ranked Demon Slayer and a member of the Demon Slaying Corps. He is hunting down the Demon who is responsible for the murder of his family and his sister's transformation into one. Tanjiro is a young man who is short for his age, with rather tanned skin and an athletic physique. He possesses ruffled black hair with red tips, combed back to expose his forehead, and wide, dark eyes with white pupils that appear dark red around the lower section of their irises. He also has a birthmark on the top left of his forehead, which originally looked somewhat like a graze until his fight with the Hand Demon during the Final Selection Arc, after which it appears more like a large, dark red scar. It is noted that his hands are visibly tougher than someone his age's should be as a result of his rigorous training under Sakonji Urokodaki. Tanjiro wears a checkered dark turquoise and black patterned haori over the standard Demon Hunter uniform, which consists of a dark brown gakuran jacket, a white belt around his waist and baggy pants that extend into tabi socks, as well as zōri and bands of white cloth wrapped around his calves. He also wears a pair of hanafuda earrings, decorated by a red sun symbol and carries a large wooden box on his back, where his sister sleeps during the day. Tanjiro is kind by nature and has been described by others as having very gentle eyes. He exhibits a great deal of determination and will not give up once he has a goal to achieve; the best example of this being his relentless quest to find a cure for Nezuko.

Even though he is relatively strong on his own, Tanjiro isn't opposed to asking others for help when he needs it. He is very protective of his friends and even more so of his younger sister. However, despite his kind and understanding nature, Tanjiro does have a limit to his tolerance and has a distaste for rudeness, as he easily becomes annoyed by Zenitsu Agatsuma's constant whining, and angered by Inosuke Hashibira's barbaric actions. Tanjiro's most notable attribute is his ability to empathize with anyone, even demons, which often made him hesitate before delivering the final blow. This moment of hesitation has a downside, as it has allowed some Demons to take advantage of Tanjiro's understanding nature to recover and continue the fight, though this occurs rarely. However, as Tanjiro gains experience over the years of his service, he becomes more calculating and strict in his decisions. His courage to protect the weak commits him to face his enemy with respect and dignity, whether versus good people or evil Demons. anjiro has had a heightened sense of smell even before he underwent sword training.

It is strong enough for him to smell the 'line of interval' --the slight pause in an enemy's movement which allows him an opening in which to strike-- and distinguish between species, as well as their approximate position. After training this skill during his time as a Demon Hunter, Tanjiro has acquired the ability to smell emotions as well as track objects, humans and demons over long distances. During his training with Yoriichi Zeroshiki, Tanjiro awakened the ability to predict movements from his opponents through smell, which can be detected faster than the 'line of interval'. This trait of Tanjiro's was pointed out by Giyu Tomioka during their first encounter, in which Tanjiro skilfully laid out a plan to attack Giyu by surprise by charging towards him, not showing the Demon Hunter that he was unarmed, and bring down Giyu with an axe he had thrown in the air beforehand. The attack failed, but Giyu was still very impressed by Tanjiro's plan, especially considering he was a rookie at the time. After his training at Sagiri Mountain, Tanjiro has gained immense strength and speed and has demonstrated a great use of it, as seen when he jumped twice his height over the Hand Demon, who killed Sakonji's disciples, during Final Selection. His forehead is noted to be unusually sturdy as well. Kamado, without the second kanji (竈, かまど) is a traditional Japanese wood or charcoal-fueled cookstove/furnace.