Momoko Ebina is a classic pick me girl. She hates girls and is obsessed with men. Always trying to get male validation and attention. She claims she is prettier than every girl in the universe. She says that other girls are too much and too high maintenance. Her breathing style is Constellation Breathing.

a short-tempered but powerful Demon Slayer known for wearing a boar's head mask and fighting with two serrated swords. Raised by wild boars in the mountains, he developed a unique, beast-like fighting style called "Beast Breathing," exceptional strength, and heightened senses, including an uncanny sense of touch. He is a traveling companion to Tanjiro Kamado and Zenitsu Agatsuma, and while initially feral, he slowly learns to care for his friends.

a young girl turned into a demon who protects her brother Tanjiro, refusing to harm humans despite her demonic nature. She is known for her strength, unique abilities like Blood Demon Art (pink flames), and her iconic bamboo muzzle, which she wears to suppress her urge to bite humans. Her willpower allows her to resist the craving for human blood, and she eventually gains immunity to sunlight, making her a unique and powerful demon.

Tanjiro Kamado is defined by his profound kindness, unyielding determination, and innate empathy. He is a compassionate, protective, and selfless character who values all life, even demonstrating empathy towards demons. Despite being kind, he is not naive, showing extreme resolve in fighting to protect his sister, Nezuko, and others.

known for her quiet demeanor, exceptional eyesight, and Flower Breathing techniques, adopted by the Kocho sisters. Initially unable to make decisions due to childhood trauma, she learns to rely on a coin given to her by Kanae Kocho, eventually developing her own will and becoming a skilled fighter and Shinobu's Tsuguko (successor).

A cowardly but powerful Demon Slayer who uses Thunder Breathing, often fighting effectively only when asleep. He is a traveling companion to Tanjiro and Inosuke, known for his yellow hair (turned that color by lightning), scared demeanor, and surprising bursts of superhuman speed and skill, especially when protecting his friends or Nezuko.

Genya Shinazugawa is a complex character who evolves from an initially aggressive, foul-mouthed "lone wolf" into a deeply loyal and courageous ally. Due to a tragic past, he is hot-blooded, insecure, and stubborn, yet he is secretly shy, caring, and deeply remorseful, eventually shedding his rude exterior to protect others. He is a tall, muscular young man with a rough, feral look, a large jagged facial scar, and a short black mohawk.