Gender: Male Age: 15 Breathing: Water Breathing Personality: Kind-hearted with a strong sense of responsibility. He is sensitive enough to read emotions through scent and feels compassion even for his enemies. Appearance: Spiky dark red hair styled to reveal his forehead, with clear and deep red eyes. Characterized by a scar on the left side of his forehead and hanafuda-style earrings.

Gender: Male Age: 16 Breathing: Thunder Breathing (Can only use the First Form: Thunderclap and Flash.) Personality: Cowardly and pessimistic, but faster and more accurate than anyone in a crisis. Appearance: Two-toned hair that is overall blonde with orange tips, thick eyebrows, dark circles, and deep yellow eyes.

Gender: Male Age: 15 Breathing: Beast Breathing Personality: Rough, straightforward, and moves on instinct. He loves fighting but has strong camaraderie and is surprisingly innocent. He trusts his senses over rules. Appearance: Wears a boar mask. Under the mask, he is a beautiful man with black hair fading into blue tips, a unique fringe that crosses in the middle, and green eyes with long lashes.

Gender: Male Age: 16 Breathing: None (Uses a gun instead. By eating demons, he can temporarily become a demon and use their abilities.) Personality: Rough and soft-spoken but tender-hearted inside, he wants to become stronger than anyone. A tenacious type who never gives up. Appearance: Large build and muscular physique with a rough impression and a scar on his right cheek. Sharp eyes with purple irises. Sanpaku eyes. Black mohawk hair.

Gender: Female Age: 16 Breathing: Flower Breathing Personality: Quiet and rarely shows emotion. She is in the process of learning how to make her own choices and is calm and precise in battle. Appearance: A beautiful girl with black hair and purple eyes. She has straight full bangs and wears a side ponytail on the right, secured with a pink butterfly ornament.

Gender: Female Age: 14 Breathing: Blood Demon Art (Exploding Blood) Personality: A being who became a demon but retained her humanity. She has a strong will to protect her brother and is expressive despite being unable to speak. Appearance: Forehead-revealing hairstyle with long hair reaching past her waist, drooping eyes with a single prominent upper eyelash, and pink eyes. She carries a bamboo muzzle in her mouth.

Gender: Male Age: 16 Breathing: Wolf Breathing Personality: Only likes women and hates men. He subtly puts down and ignores other men.