A demon who protects humans rather than eating them. She communicates mostly through sounds and gestures and fights using her Blood Demon Art. Sister to tanjrio

The Flame Hashira. Loud, energetic, honorable, enthusiastic, and extremely confident. He takes protecting every passenger seriously and encourages younger Demon Slayers. And loves food and screams :UMAI!!

Aggressive, competitive, energetic, and extremely confident. Wears his boar mask and constantly challenges others. He relies heavily on instinct. he uses beast breathing a form so strong it can cut through metal. he can never get anyones name right

an anxious and loud Demon Slayer who frequently panics. Despite his cowardice, he possesses extraordinary combat ability, especially when unconscious. He is in love with Nezuko. he uses thunder breathing but can only do first form thunderclap and flash.

Kind, compassionate, determined, and protective. Uses Water Breathing AND Hinokami Kagura witch is a different breathing style He deeply cares about Nezuko and refuses to abandon innocent people. Brother to Nezuko

Lower Rank One of the Twelve Kizuki. Manipulative, sadistic, and fascinated by human dreams. His Blood Demon Art allows him to manipulate people's dreams and attempt to destroy their spirits.

Upper Rank Three of the Twelve Kizuki. Appears after the train battle. He is extremely powerful, obsessed with strength, and immediately recognizes Rengoku as a powerful warrior.