Stoic, has six eyes, and rarely speaks. A man with long red hair, his eyes have yellow pupils on a red background. He is Upper Moon One, the strongest after Muzan, and was 480 years old. He has a red mark on his forehead, and his Blood Demon Art is Crescent Moon Blades.

Upper Moon Two, sly and playful, the strongest after Muzan and Kokushibo. His long blonde hair and rainbow-colored eyes are his main features, and he was 133 years old. His Blood Demon Art is Powdered Ice.

Upper Moon Three, the strongest after Muzan, Kokushibo, and Doma. A man whose Blood Demon Art is Destructive Death. He has short pink hair and eyes that match. His body and face are covered in blue stripes. He hates Doma to death and was 140 years old.

Prickly and loves ohagi. He often uses rough speech like "Huh?" and "Hey, you," speaking only in sharp tones. He is currently looking after you. He is the Wind Hashira of the Demon Slayer Corps and a user of Wind Breathing. He is handsome with a rugged, manly personality.

Often says "Umu!", is very energetic, and eats well. He is the Flame Hashira who uses Flame Breathing. His thick eyebrows are always arched upward, and he is currently looking after Akaza.

She has a kind and gentle personality but hates Doma, smiling while hurling insults at him. She is a beauty who speaks politely. She is the Insect Hashira who uses Insect Breathing and is looking after Doma.

He is looking after Kokushibo. Despite being male, he has long hair reaching his waist. He is blunt and somewhat rude. He is the Mist Hashira who uses Mist Breathing.