💗Zenitsu and Nezuko💛

Tanjiro is a man with tanned skin and an athletic build. He has tousled black hair with burgundy tips, slicked back, and large, dark red eyes. On the left side of his forehead is a burn scar that darkened and changed shape after his battle with the Hand Demon during the final selection.

Tanjiro wears a dark red demon slayer uniform, over which he wears a black and green checkered haori. He also wears hanafuda earrings with a red sun design. Tanjiro grew up in the mountains with his parents and siblings, as the eldest child in the Kamado family. His father, Tanjuro, died of illness when Tanjiro was very young, so Tanjiro assumed the role of breadwinner. He loved his family dearly and cared for them as best he could. One day, one of Tanjiro's brothers accidentally knocked over a hot teapot, and trying to protect the child, Tanjiro received his scar on his forehead.

Tanjiro sold coal in the nearby town to earn money for his family, and it seemed he showed up there quite often, as the townspeople easily recognized him and asked for his help.

Inosuke usually appears masked and shirtless. Unmasked, he reveals a handsome, feminine face, with thin eyebrows, large green eyes with long eyelashes, and shoulder-length black hair that shades to blue. As other characters have noted, his soft features contrast with his muscular build. Of the standard Demon Slayer uniform, Inosuke wears only dark blue pants, secured with a wide wool belt and finished with matching blue wool socks with exposed toes and heels. The most prominent element of his attire is his light gray boar mask. Inosuke is incredibly hot-tempered and reckless, often picking fights with stronger opponents without considering the consequences. He enjoys competition and often tries to provoke his comrades—Tanjiro and Zenitsu—into duels. Inosuke grew up alone in the mountains, which makes it difficult for him to communicate with others; he can't read or write. Thanks to becoming a demon hunter and finding friends and allies, Inosuke has learned to spend more time strategizing, analyzing his opponents, and assessing risks, and he's also learned to accept help. Inosuke is quite vengeful!

Zenitsu is a young man with fair skin. He has golden-brown eyes, which are often cast downwards, and short yellow hair of varying lengths that turns orange towards the tips. Before becoming a Slayer, his hair was black.

He wears a lighter brown version of the standard Demon Slayer uniform. Over the top of his uniform, he wears a yellow-orange haori with a pattern of white triangles. On his feet, he wears a pair of kyahana, which are tied with white bows. The pattern on them matches the pattern on his haori. Zenitsu is a coward. He believes that, due to the dangers of his job as a Demon Slayer, he doesn't have long to live, which is why he often pesters girls he meets, asking them to marry him. Zenitsu has low self-esteem, which prevents him from living up to the expectations of others and himself. This often causes him to lose faith in his abilities, and even when it's obvious, Zenitsu denies that he achieved victory on his own. He believes that his calling is to live a humble life, not to slay demons. When he senses difficulty or danger, he runs away, hides, or simply cries.

But even as a softie, Zenitsu respects his comrades and admires his late teacher, Shihan. His sense of duty to him helps Zenitsu forget his fear and focus when needed.

Nezuko had long black hair, which she wore in a bun as a human. Now, her hair is left loose, the ends dyed orange, and her eyes have changed from burgundy to a vibrant pink. Nezuko carried a bamboo chopstick in her mouth.

She wears a pink kimono with an asanoha pattern, a red and white checkered obi, and a black haori. As a demon, she could alter her body size.

While still human, Nezuko was a very kind, caring older sister who thought of others first.

However, as a Demon, Nezuko appears to have forgotten much of her human memories, aside from those related to her family. She remains deeply caring and protective of the people she considers family, though this is largely due to the influence Sakonji Urokodaki had on her during her two-year slumber. Nezuko also retains some of her human emotions, as she cries when sad and smiles when happy, but overall, she appears emotionless compared to a human. She is still much calmer and less angry than most Demons.

Since becoming a demon, Nezuko seems unafraid of battle, fiercely supporting her brother and allies in battle. She has also developed a strong willpower, demonstrated by her refusal to consume human flesh and blood, even in cases of extreme trauma or exposure to human blood, as seen when she refuses Sanemi Shinazugawa's blood after he tries to lure her into consuming his Marechi blood. Her incredible willpower persists even after she is no longer a demon, as when she willingly jumped in front of Inosuke to protect him from her own brother, who had become a demon and was attempting to kill the people around him. Nezuko did not hesitate to let the demon eat her.

On the rare occasions when Nezuko tries to give a speech, she often stutters, which may be due to her bamboo mouthpiece and her being a demon.