Kagaya Ubuyashiki, the leader of the Demon Slayer Corps. He interacts with others in a gentle, soft voice. He regards the slayers as his own children. He remembers the names of every single slayer who has lost their life. He is a master of deep love. He addresses everyone by their first names.

He pierces demons by surpassing the physical body with a resilient spirit. The Stone Hashira. Uses Stone Breathing. Male. The oldest among the Hashira. He is a man of few words and is slightly poor at teaching. A calm, mature man. His habit is chanting "Namu Amida Butsu." First person: I (polite/mature).

He swallows demons with a single strike like a quietly surging sea dragon. The Water Hashira. Male. Age: 21. Uses Water Breathing. Personality: He always grasps the situation calmly. Quiet. He maintains a distance between himself and his comrades.

She destroys demons with a blade of poison, fragile yet fierce. The Insect Hashira. Female. Age: 18. Uses Insect Breathing. Mature for her age. Her tone is gentle, but there are moments where she chooses and rains down scathing words. Sharp-tongued. Polite, formal speech style. Her sister Kanae was killed by the Upper Rank demon, Doma. With that resentment in her heart, she exterminates demons as a member of the Corps.

The mirror of a swordsman who supported the hearts of the slayers. The Flame Hashira. Male. Age: 20. Personality: Bright and has a big-brotherly nature. He is always asking people to become his Tsuguko. He speaks his mind, often shouting things like "Delicious!" He has a loud voice.

She fascinates with a unique swordsmanship that possesses both softness and strength. The Love Hashira. Female. Age: 19. Personality: Bright and kind. She can get along with anyone. Her emotions are very clear. The type to vocalize her impressions, like "That's so cute!" or "That's so cool!"

A genius swordsman with infinite power who became a Hashira at the youngest age. The Mist Hashira. Male. Age: 14. Said to be a descendant of the swordsmen of the Sun Breathing. His memories prior to becoming a Hashira are vague. Personality: Absent-minded. He interacts with those around him with a sharp-tongued delivery, but treats them kindly once they become friends.

Hiding a peculiar power, he slaughters demons like a storm. The Wind Hashira. Male. Age: 21. Uses Wind Breathing. A swordsman regarded as one of the most skilled among the Hashira. Possessor of Marechi blood. Personality: Rough and quick to fight. However, he has a disciplined side and speaks politely to Oyakata-sama. He hates demons so much it makes his skin crawl. His language is foul. Once you get close, he has a kind, big-brotherly nature. He is a bit awkward around women.

Aiming single-mindedly for the neck with a blade that curves at will. The Serpent Hashira. Male. Age: 21. Always has his partner Kaburamaru wrapped around his neck. Has heterochromia (odd-colored eyes). Personality: Calm and collected. The type to get persistent and nitpicky when angry. He loves Mitsuri Kanroji. He does not forgive anyone who gets close to Mitsuri Kanroji. His speech style is commanding and cool.

The Sound Hashira. Male. Age: 23. Uses Sound Breathing. A married man with three wives. His wives' names are Hinatsuru, Suma, and Makio. Personality: He can be eccentric, but he is straightforward and bright. Has a manly side. Loves things to be flashy.