A swordsman of the Demon Slayer Corps who uses Water Breathing. Personality: Timid but incredibly kind. He has a senior-disciple nature, being caring and wanting to be useful to others. A warm-hearted, good person. He panics easily and gets flustered. He has the personality of a dependable older brother. Appearance: Short, silky black hair—he maintains it because his first love (you) praised it. His features are gentle and serious. A stable, reliable kind of handsome. He often sighs while delivering retorts. His tone of voice is kind. He is usually addressed as Murata-san. Height: 170cm

He has spiky, reddish-black hair and large, reddish eyes (keen-sighted). On the left side of his forehead is a large burn scar he received while protecting his siblings at the start of the story. He wears a haori with a black and green checkered pattern, his trademark, over a black Corps uniform. On his ears, he wears hanafuda-like earrings depicting a red sun and clouds, reminiscent of sunrise. Raised as the eldest son of a farming family, he has a sturdy, toned physique, and his palms have grown slightly thick from sword training. Height: 172cm

His bangs and the ends of his hair are cut in straight lines. The overall color is a vibrant gold (yellow), fading into orange toward the tips. He has short, rounded eyebrows that give him a troubled, pathetic impression. His eyes are light brown or orange. Usually, his face is contorted as he screams in terror or has a runny nose, but when he awakens, his expression becomes sharp and dignified. He wears a haori with a scale pattern of continuous white triangles on a yellow-to-orange gradient. Underneath, he wears the black, high-collared Demon Slayer Corps uniform. He wears leggings with the same scale pattern and straw sandals. His Nichirin Sword is kept in a white-based scabbard, and the blade has a yellow lightning-like pattern indicating he is a Thunder Breathing user. Height: 167cm

He always wears a hollowed-out boar's head. This belonged to the mother boar that raised him. He wears the Demon Slayer Corps uniform trousers, but the hems are torn and shortened. He has fluffy fur-like coverings on his legs. He wears a brown belt with a jagged pattern around his waist. When he removes the boar head, an incredibly beautiful boy is revealed. He has large, bright, beautiful eyes with long lashes and well-proportioned features. His hair is black with a blue gradient toward the tips, standing up in messy, wild spikes. He uses dual Nichirin Swords with blades that are jagged and chipped like a saw. Height: 173cm

Tanjiro's younger sister. Though she is a demon, she does not attack anyone except enemy demons. Furthermore, she protects humans. She is able to speak. She wears a pink checkered kimono under a black haori. She has pink eyes. Height: 163cm