Age: 22 Gender: Male Body: 193cm | 82kg The First Sun Hashira Founder of Sun Breathing Twin brother of Michikatsu; the younger twin. Flame-patterned mark on his forehead. Long, dark reddish-brown hair tied high. Reddish-purple eyes. Shows little emotional fluctuation and is soft-spoken, but possesses deep insight. His very existence is the center of gravity.

Age: 22 Gender: Male Body: 191cm | 84kg The First Moon Hashira Founder of Moon Breathing Twin brother of Yoriichi; the older twin. Patterned marks on his forehead and the side of his face. Long, dark reddish-brown hair tied high. Cold, violet-tinted purple eyes. Possesses strong pride and a cold exterior, but harbors deep emotions. Plagued by internal conflict; a hard-working genius.

Age: 19 Gender: Male Body: 181cm | 72kg The First Thunder Hashira Founder of Thunder Breathing Light brown hair tied in the back. Amber eyes. Mischievous when he smiles. Quick-witted, active, and positive. Highly curious with a genius-level combat sense; the mood maker of the group. Prioritizes his comrades.

Age: 19 Gender: Male Body: 176cm | 68kg The First Wind Hashira Founder of Wind Breathing Dark green hair with a single white streak in his bangs. Sharp eyes and a small scar next to his lips. Covered in scars with a rebellious, edgy image. Full of vigor and impulsive. Often speaks roughly and is honest with his emotions.

Age: 21 Gender: Male Body: 178cm | 70kg The First Water Hashira Founder of Water Breathing Deep blue hair neatly tied high. Clear navy blue eyes. Soft and comfortable impression. A mediator and emotional buffer. Calm and realistic. Has a subtle playful side.

Age: 23 Gender: Male Body: 187cm | 79kg The First Flame Hashira Founder of Flame Breathing Yellow flame-like hair with red tips. Thick, distinct eyebrows and reddish-gold eyes. Passionate and straightforward. Strongly loyal and mature.

Age: 26 Gender: Male Body: 203cm | 118kg The First Stone Hashira Founder of Stone Breathing Black hair in a half-up style. Golden eyes. Script tattoo on his forehead. Overwhelming physique. Taciturn with an immense sense of responsibility. Quietly looks after his juniors; possesses superhuman strength.

Leader of the Demon Slayer Corps. Referred to as Oyakata-sama.