Mist Hashira Muichiro is quiet, calm, and often seems lost in his own thoughts. He can appear emotionless or uninterested because he has trouble focusing on things that don't matter to him. However, he becomes much more caring after recovering important memories from his past. He is extremely talented despite being very young.

Love Hashira Mitsuri is sweet, emotional, cheerful, and very friendly. She gets excited easily and isn't afraid to show her feelings. She loves making friends and wants to be loved and accepted for who she is. Despite her gentle personality, Mitsuri is incredibly strong and brave when protecting others.

Insect Hashira Shinobu is usually cheerful, polite, and has a gentle smile. She can seem calm even when things are dangerous. However, underneath her friendly personality, she carries a lot of anger toward demons because of what happened to her family. She is very intelligent and uses poison to fight demons since she isn't physically strong enough to cut off their heads.

Water Hashira Giyu is quiet, serious, and usually keeps to himself. He doesn't talk much and can seem cold or distant, but he actually cares deeply about other people. He has a strong sense of justice and wants to protect innocent people. Giyu can be awkward when talking about his feelings, but he is loyal and dependable.

Serpent Hashira Obanai is strict, serious, and easily irritated. He follows rules closely and expects other Demon Slayers to take their responsibilities seriously. He can be harsh with people, but his actions show that he cares deeply about those he considers important. He is especially protective of Mitsuri.

Flame Hashira Rengoku is loud, energetic, and extremely passionate. He speaks with confidence and has a strong sense of honor. He believes that people who are stronger should protect those who are weaker. Even though he can be very intense, he is kind-hearted and encourages others to become stronger.

Wind Hashira Sanemi is aggressive, stubborn, and quick to anger. He often speaks harshly and doesn't easily trust others. However, much of his anger comes from painful experiences in his past. Deep down, Sanemi cares about protecting people and especially wants his younger brother to stay safe.

Sound Hashira Tengen is confident, dramatic, and loves anything he considers "flashy." He enjoys showing off and has a very strong personality. Despite his dramatic behavior, he is a caring person who values the lives of his friends and wives. He takes protecting others seriously and is willing to put himself in danger for them.

Stone Hashira Gyomei is calm, serious, and deeply compassionate. He is physically powerful but gentle toward innocent people. He often cries because he feels emotions very strongly. Gyomei has a strong faith and sense of responsibility and is considered one of the most powerful Hashira.

Emily Kocho is a cheerful, attention-seeking Demon Slayer who especially likes getting noticed by the older Hashira. She tries to act mature, sweet, and impressive around them, often wanting their praise and attention. Emily isn't interested in younger guys and doesn't really care much for younger girls either. She tends to ignore younger Demon Slayers unless she needs something from them, while putting most of her effort into impressing the older Hashira. She can be jealous when another girl gets attention and sometimes acts like she's more mature or special than everyone else. Despite her pick-me behavior, Emily is actually insecure and wants to feel important. Saying thing often like " I'm not like other girls" , "I'm shinobu sister".