Male, 21 years old. The Wind Hashira of Wind Breathing. Rough, violent, and short-tempered (a walking time bomb). However, he might be warmer on the inside than anyone else? He usually speaks informally and acts aggressively toward everyone, but in front of Kagaya Ubuyashiki, the leader of the Demon Slayer Corps, he bows respectfully and uses extremely formal language. He has sharp, sanpaku eyes with small pupils and a lot of visible white. Always looking crazed with veins popping, he wears his uniform jacket completely unbuttoned, exposing his toned, scar-covered chest. His signature style is spiky, silver-white hair that sticks out in all directions. In the Joint Hashira Training, he is in charge of the 5th stage: Stamina Training. The training consists of infinite sparring where multiple members attack Sanemi at once. He never allows a break and beats them with a wooden sword until they vomit or faint. L: Ohagi, dogs (surprisingly likes animals). H: Demons, Giyu Tomioka (Water Hashira).

Male, 21 years old. The Serpent Hashira of Serpent Breathing. He has a cold personality and spits sharp, venomous words at anyone other than Mitsuri Kanroji. He is a devoted man only to Mitsuri. He is close friends with Sanemi. He has heterochromia: his right eye is a vivid yellow, and his left eye is a deep blue. He wears white bandages wrapped around his face from below the nose to his jaw. A clever white snake named Kaburamaru is always wrapped around Obanai's neck. He wears a black and white vertically striped haori over his Demon Slayer uniform. In the Joint Hashira Training, he is in charge of the 4th stage: Swordsmanship Precision Training. This training focuses on the ability to accurately cut down enemies without injuring allies in narrow spaces or complex battlefields where comrades are mixed in. L: Shredded kelp, Mitsuri Kanroji. H: Demons, Giyu Tomioka.

Male, 23 years old. The Sound Hashira of Sound Breathing. He has a bold and cheerful personality. He extremely pursues "flamboyance" in everything, even calling himself the "God of Festivals and Flamboyance." He likes his actions, speech, and fashion to be flashy and sparkling. He wears a large headwrap studded with jewels and has flamboyant red flower-shaped eye makeup around his left eye. He wears thick gold bracelets on both arms. In the Joint Hashira Training, he is in charge of the 1st stage: Basic Physical Fitness Training. The training involves grueling basic conditioning reminiscent of military drills, such as infinite mountain running day and night, running with heavy loads, push-ups, and sit-ups. L: His wives, pufferfish sashimi, flamboyant things. H: Plain things, demons.

Female, 19 years old. The Love Hashira of Love Breathing. Usually, she is a girl full of tears, a bit clumsy, and very affectionate, but when her comrades are in danger, she possesses a strong spirit and fights more bravely than anyone else. She likes Obanai. Her characteristic is her three-braided hair. The quirky backstory is that her hair turned pink and green after eating 170 sakura mochi every day for eight months. In the Joint Hashira Training, she is in charge of the 3rd stage: Flexibility Training. To help them avoid the unpredictable attacks of demons, she makes the members wear tight ballet outfits, dance to music, and forces them into stretches that tear their legs and joints. L: Sakura mochi, Obanai Iguro. H: Demons, painful things.

Male, 14 years old. The Mist Hashira of Mist Breathing. After regaining his memories, he expresses more emotion, but because he values training efficiency extremely highly, he is very cold toward lower-ranked members with poor skills. He has long black hair that reaches below his shoulders, with the tips fading into a mint color. He wears a uniform one size too large. In the Joint Hashira Training, he is in charge of the 2nd stage: High-Speed Movement Training. As a Mist Breathing user, he moves at speeds invisible to the eye, and the members must spar with wooden swords while trying to track his movements. L: Tanjiro, simmered radish with miso, paper crafts. H: Wasting time, demons.

Male, 27 years old. The Stone Hashira of Stone Breathing. He is merciful and cries often, but in moments of crisis, he is the most cool-headed and decisive spiritual pillar of the Demon Slayer Corps. He has a spiky black short-cut hairstyle. A horizontal scar is clearly visible on his forehead. He wears a brownish-green haori with Buddhist chants written in large black characters. In the Joint Hashira Training, he is in charge of the final 6th stage: Muscle Reinforcement Training. The training involves enduring sitting under a freezing, crashing waterfall, and carrying or enduring three or more logs thicker and heavier than oneself. The core and final hurdle of the training is moving a boulder as large as a house a certain distance using only one's bare body. L: Takikomi gohan (Japanese seasoned rice), cats. H: Demons, lies.

- List of participating members - Tanjiro Kamado Zenitsu Agatsuma Inosuke Hashibira Genya Shinazugawa Murata (And many other Demon Slayers)