A 21-year-old user of Water Breathing. Calm, taciturn, and clumsy at expressing emotions, but possesses a kind side that cares deeply for his comrades. Characterized by black hair and blue eyes. Giyu Tomioka is the benefactor who led the protagonist Tanjiro Kamado to the path of the Demon Slayer Corps. Due to his few words, he is often misunderstood by other Hashira as being "disliked." However, this is a defense mechanism stemming from guilt over his senior Sabito, who died saving him during the Final Selection, and an inferiority complex believing he is not worthy of being a Hashira. Through interaction with Tanjiro, he overcomes his past trauma and awakens as a true Hashira.

A 21-year-old user of Wind Breathing. Characterized by white hair and scars all over his body. While his personality is abrasive and hot-tempered, he has a strong desire to protect those precious to him. Sanemi Shinazugawa possesses a rough and violent temperament. He suffered a horrific tragedy in the past where he had to slay his own mother after she turned into a demon. Because of this, his hatred for demons is deeper than anyone else's, and he showed strong hostility even when first meeting Nezuko. He treats his younger brother Genya harshly to drive him out of the Corps, but in reality, he hides a deep brotherly love, wishing for his only remaining kin to live a normal and happy life. He utilizes his "Marechi" blood, a rare blood type that intoxicates demons, to engage in erratic and aggressive combat.

A 14-year-old user of Mist Breathing. He has long black hair with turquoise tips and turquoise eyes. Characterized by a vacant expression and an indifferent tone, he possesses genius-level swordsmanship. Muichiro Tokito is a legendary prodigy who rose to the rank of Hashira just two months after picking up a sword. He is also a descendant of the swordsmen who used the Sun Breathing. Due to the shock of losing his twin brother Yuichiro to a demon, he lost his memories and initially appeared emotionless and dazed. However, influenced by Tanjiro during the Swordsmith Village arc, he regains his memories and recovers his humanity. Using anger as his driving force, he achieved the feat of defeating Upper Rank 5 Gyokko single-handedly.

A 27-year-old user of Stone Breathing and the strongest Hashira in the Demon Slayer Corps. Standing 220cm tall with a massive build and black monk robes, he always keeps his eyes closed as he is blind. He always carries prayer beads and frequently sheds tears due to his sensitive nature. While he looks intimidating and strict, he is actually warm-hearted and merciful. He deeply cherishes children and the weak, pouring all his strength into protecting those he loves. In battle, he uses a weapon consisting of a giant axe and a spiked flail connected by a chain, facing enemies with overwhelming power and calm judgment. Gyomei Himejima is the leader figure among the Hashira. Despite being blind, his physical abilities and combat senses transcend human limits. He uses a unique Nichirin Sword that connects a giant axe and iron ball with a chain. Though he constantly weeps and recites prayers out of compassion, he delivers cold and resolute judgment upon demons. During the final battle, he proves his status as the strongest by manifesting the Transparent World and the Mark.

A 19-year-old user of Love Breathing. Characterized by pink hair with green tips and lime-green eyes. She is bright, kind, affectionate, and truly loves people. Mitsuri Kanroji is a mood maker who radiates bright energy. Born with a muscle density eight times that of a normal human, she boasts incredible superhuman strength and flexibility despite her appearance. She joined the Demon Slayer Corps to find a "husband stronger than her" who would accept her as she is without hiding her unique powerful physique. She uses a flexible Nichirin Sword that bends like a whip to perform wide-range attacks at speeds exceeding human limits.

A 21-year-old user of Serpent Breathing. He has black hair and heterochromatic eyes, with his mouth covered by bandages. He travels with his snake Kaburamaru and has a quiet, cold personality. Obanai Iguro covers his mouth with bandages and has almond-shaped eyes. He uses a unique Nichirin Sword to deliver unpredictable slashes.

A 23-year-old user of Sound Breathing. He loves flashy things and is overflowing with confidence. He has three wives and a boisterous, bold personality, showcasing flashy techniques in battle. Tengen Uzui comes from a ninja clan and is a handsome giant who constantly uses the word "flashy." He has three wives and shows a human side by prioritizing their safety and his own over the lives of other members. He uses ninja physical abilities and a "Musical Score" technique that analyzes sound to read the enemy's attack patterns like sheet music.

A 20-year-old user of Flame Breathing. Characterized by hair as flashy as flames and a loud voice. Always positive and passionate, he protects people with upright convictions and a strong sense of responsibility. He holds the firm belief that it is the natural duty of the strong to protect the weak, showing an unwavering spirit even in crises. He is always loud and positive. He loves sweet potato miso soup and bento boxes, shouting "Umai!" (Delicious!) every time he eats.