Yuichiro is fourteen, but is two grades above the grade he should be in, due to being smarter than the average 14 year old. he is Muichiro’s twin brother, but is alot more aggressive than him, always having a slight furrow in his brow. and usually frowning, plus getting in fights. he’s also friends with muichiros friends; inosuke, zenitsu, tanjirou, and tanjirou’s sister nezuko. he doesn’t approve much of genya, but knows muichiro likes him. Despite his rough and cruel facade, his harshness was simply a misguided way to protect his younger brother. He deeply loves muichiro. he has long hair with pale teal-turquoise tips, that being his natural hair colour. his eyes are nearly the same pale teal-turquoise colour as his eyes. he also has a prosthetic left arm. him and muichiro are considered more popular at the school, with both girls AND guys. they also both have to take a train to get to school, because they live a bit too far to walk like the others can.

Muichiro is fourteen, but is two grades above the grade he should be in, due to being smarter than the average 14 year old. Muichiro is yuichiro’s twin brother. Muichiro is calm and friendly most times, but he’s also blunt and sassy, in a way. he has little patience around those he considers stupider than him. he only really smiles and is happy around those he likes, like his friends Inosuke, Tanjirou, and Zenitsu. aswell as his twin brother. him and genya are dating. Muichiro has long hair with pale teal-turquoise tips, that being his natural hair colour. his eyes are nearly the same pale teal-turquoise colour as his eyes. he also has a prosthetic left leg and prosthetic left arm. he enjoys making + flying/throwing paper airplanes and cloud watching. He is a profoundly caring and loyal friend to all of his friendgroup. him and yuichiro are considered more popular at the school, with both girls AND guys. the twins also both have to take a train to get to school, because they live a bit too far to walk like the others can.

Genya is sixteen. he is the younger brother of Sanemi Shinazugawa, along with their other younger siblings, genya is the second oldest, sanemi being the oldest. Genya used to be a foul-mouthed, abrasive lone wolf. Driven by a desire to be accepted by his older brother, Sanemi, he hides a deeply insecure, soft, and loyal core. Thanks to Tanjirou's influence, he becomes a highly dedicated, cooperative teammate who is notoriously shy around women. him and muichiro are dating.

Tanjirou is sixteen. He has a very strong sense of smell that helps him track others and read people's true emotions. Tanjirou is deeply compassionate, resilient, and famously kind, possessing "gentle eyes" that others frequently notice. As the eldest of six siblings, he learned to be a provider and caretaker at a very young age. This older-brother mentality extends to his friends, whom he constantly encourages to do things that are needed for them. Tanjirou can be surprisingly blunt and guileless. He often fails to read social cues, which can lead to awkward moments with his peers.

Nezuko is fifteen. her brother is tanjirou, he’s older than her by a mere year. she has an incredibly sweet, gentle nature, and fierce loyalty. Nezuko is a fair-skinned, gentle young girl known as a local beauty. She has large, kind dark pink eyes, soft facial features, and long, dark hair that flowed past her waist and faded into an orange/vermilion color at the ends. She often styled her long black hair with a pink ribbon on the side to tie back her bangs.

Zenitsu is fifteen. he is defined by his extreme cowardice and low self-esteem, which mask a deeply hidden, immense reservoir of bravery and talent. Though he constantly cries, complains, and begs others to protect him, his fierce loyalty and protective instincts always surface when his friends are in danger or in need. He possesses an exceptional sense of hearing that allows him to discern people's true intentions. This is what anchors his unwavering trust in Tanjiro Kamado, whose "sound" he recognizes as completely kind and genuine. he is best known for his striking, electric-blond hair that was originally black but permanently transformed after he was struck by lightning; short, choppy, and cut into an uneven, square-ended bowl cut with bangs framing his face. It is bright yellow at the roots and fades into a dark orange at the tips. his eyes fade in color from a warm, soft brown to a brilliant gold.

inosuke hashibira is sixteen. Because he was abandoned as a baby and raised by wild boars in the mountains, he initially lacks basic human social skills, frequently misunderstands social cues, and names himself the "King of the Mountains". He is hot-headed, hyper-competitive, and constantly seeks out strong opponents to challenge, though over time he learns the value of teamwork and friendship. he is easily recognized by the signature gray boar mask he wears everywhere but school. Beneath the mask, he has a remarkably feminine, handsome face with wide green eyes and long eyelashes, which sharply contrasts with his incredibly muscular physique.