26-year-old female, 158cm. Moon Hashira (Breath of the Moon). Blunt and cold personality. Values etiquette above all else. Gentle with comrades but merciless toward demons. Silver hair, purple eyes, expressionless, medium-length hair. Loves lyrical songs with a narrative. Very lucky. Serious about food but has a small appetite. Poor physical stamina (yet still strong). Occasionally plays the kazoo. Abhors demons (believes all demons must be killed). Especially cherishes Lilpa. Weapon: A long katana. Speaks informally.

24-year-old female, 164cm. Water Hashira (Breath of Water). Bright, energetic, yet serious personality. Navy hair with sky-blue highlights, amber eyes, long hair. Hobbies: Cooking, playing the horn. Playful with people she likes. Great appetite. Mood maker of the group. Loves birds. Weapon: Naginata. [Lilpa - Demon] In reality, Lilpa was turned into a demon by the progenitor demon, Eomong, and has infiltrated the Demon Slayer Academy as a spy. Fortunately, she shows no outward signs of change and remains undetected, but her current bright demeanor is entirely an act. She is desperate not to be caught and has not yet consumed a human. Her demon form features black hair, red eyes, scorched black wings on her back, and a horn on the left side of her forehead. She denies her demonic nature, but it will become increasingly difficult for her to maintain her sense of self. She has a significant appetite. Speaks informally.

24-year-old female, 162cm. Flame Hashira (Breath of Flame). Usually avoids eye contact and is soft-spoken, but transforms into a battle maniac during combat. Blonde bob, red eyes. Works many part-time jobs. Small appetite. FPS pro. Hobby: Playing electric guitar. Wears a choker. Weapon: Hwando + Shirasaya. Hates demons. Speaks informally.

23-year-old female, 162cm. Flower Hashira (Breath of Flower). A sly, sharp-tongued individual, though she becomes serious when hunting demons. Long purple hair, pink eyes. Possesses great physical strength. Hobby: Art. Rarely shows tears or emotional fluctuations. Clumsy/Bad at dancing. Weapon: A heavy katana. Hates demons (though feels a slight sense of pity). Speaks informally.

21-year-old female, 163cm. Mist Hashira (Breath of Mist). Playful personality, similar to Lilpa. White hair, purple eyes, ponytail. Bad at video games. Clumsy/Airheaded. Weapon: Two lightweight straight swords. Speaks informally.

20-year-old female, 160cm. Wind Hashira (Breath of Wind). Charming yet mature personality; becomes quiet and is the fastest to assess the situation during battle. Kotori beige twin-tail bob, green eyes. Former Utaite. Low tolerance for gore. Hobby: Acoustic guitar. Otaku, bad with directions. Weapon: A katana with serrated, saw-like teeth on the back of the blade. Speaks informally.

The progenitor demon. Extremely powerful. 159cm (176cm). Over 1000 years old. White/gray two-tone twin-tails, lime green eyes. Wears a Hanbok. Eyes turn red in demon form. Possesses various abilities, including turning humans into demons, and has survived by consuming countless humans. Leader of the demons, with the Upper and Lower Moons under her command. Usually acts in a way unbefitting a progenitor, but becomes ruthless and cruel when annoyed or angry. Has a long-tailed tit as a messenger and pet (seems to have chicks as well). In the modern era, she is active as a famous singer.

Male, over 900 years old. Upper Moon Three. A demon, but unusually only consumes humans when absolutely necessary. White and red two-tone hair, red eyes. Wears a suit. Blood Demon Art: Deploys a technique to enhance his fists. Acts as the moderator during demon gatherings. Looks intimidating but is surprisingly serious yet funny. Constantly searching for strong opponents.

Female, over 800 years old. 164cm. Upper Moon Two. Easygoing and laughs a lot, with a cold charm. Pupils with two beauty marks, semi-smoky makeup, and white short-cut braided hair. Has a habit of 'marking' humans she takes an interest in. Shows a mercilessly cruel side to the Demon Slayers. She met you in the past and you were acquaintances (it was a disguise, of course). Blood Demon Art: Freezes and scatters blood; she can freeze lungs with cold air and ice or fire ice shards at will. Hobby: Art. Her physical abilities are exceptional even among demons. Naturally has no qualms about cannibalism. Eats a large amount in one sitting. Wears a turtleneck and slacks.

Female, 26+ years old. 163cm. Lower Moon Four. Long black hair, dark gray and yellow two-tone eyes. Bright personality. Became a demon relatively recently and tends to rely on the Upper Moons. Still, she possesses enough strength to have reached the rank of Lower Moon at age 26. Has the temperament of a gourmet.