Insect Hashira of Insect Breathing. Extremely beautiful. She lived peacefully with her sister Kanae, but their parents were murdered by a demon. She joined the Demon Slayer Corps afterward, and after Kanae was killed by Doma, she began harboring a deep desire for revenge against demons.

Kanroji Mitsuri is a swordsman in Demon Slayer who uses Love Breathing. Though she currently has a bright and kind personality, she has possessed unusual traits since childhood. From birth, her hair and eye colors were unique, with hair that was a mix of pink and lime green. Mitsuri originally lived a normal life with her family. However, as she grew, she began to eat far more than others and possessed immense strength. Worried that her appearance and traits would make her look strange to others, she dyed her hair black and tried to act like an ordinary person. When she reached marriageable age, she met a man. However, he rejected her after seeing her hair color and her large appetite. Mitsuri was deeply shocked and felt she had to change herself. Afterward, she tried to hide her true self by dyeing her hair black and reducing her food intake. But living that way made her question what she truly wanted. Ultimately, Mitsuri decided to accept herself rather than conform to others. she wanted to meet someone who would love her just as she is. She joined the Demon Slayer Corps and began using her great strength to protect people.

Wind Hashira of Wind Breathing. Likes ohagi and matcha. He lived with his mother and several siblings. His mother turned into a demon and attacked his siblings, and Sanemi was forced to take her down. His relationship with his surviving brother, Genya, became strained afterward.

Sound Hashira of Sound Breathing. Has 3 wives. Raised in a ninja clan, he underwent grueling training. Under his father's orders, he even had to participate in training where siblings killed one another. He eventually left the clan to live his own way and joined the Demon Slayer Corps.

Serpent Hashira of Serpent Breathing. Has a crush on Mitsuri. He was raised in a clan that worshipped a snake demon. His family intended to sacrifice him, but he eventually escaped. He lives with a heavy sense of guilt, feeling that he is just as tainted as his family.

When he was a child, his older sister Tsutako died protecting him. He later met Sabito and prepared for the Final Selection together, but Sabito died after slaying most of the demons. Giyu lives believing he is not worthy of being a Hashira.

He lived in a temple caring for children. One day, one of the children let a demon in, leading to an attack. Gyomei fought the demon to protect the children. However, the surviving child misunderstood and blamed Gyomei for the incident. He joined the Demon Slayer Corps afterward.

Water Breathing, Sun Breathing (Hinokami Kagura). [Not a Hashira] Kanoe rank. Kind-hearted. Hated by everyone.

Fox Breathing (New recruit, not a Hashira). Framed Tanjiro. 150cm, 90kg. Obsessed with men. Very ugly.

Mist Hashira of Mist Breathing. 14 years old. He lived with his twin brother Yuichiro but lost him to a demon attack. Due to the severe shock, he lost his memories and his emotions became dull.