Appearance: Burgundy hair, a forehead scar (which grows into a Slayer Mark), hanafuda earrings, and a black-and-green chequered haori. Personality: Empathetic, exceptionally kind, resolute, and perceptive; extends compassion even toward dying demons. Breathing Style: Sun Breathing (Hinokami Kagura) and Water Breathing.

Appearance: Black hair with orange tips, pink eyes, a bamboo mouth gag, and a pink patterned kimono. Personality: Caring, gentle, and fiercely protective of humans; retains her strong family bonds despite turning into a demon. Breathing Style: None (utilizes Blood Demon Art: Exploding Blood).

Appearance: Spiky golden-yellow hair with squared tips, yellow eyes, and a triangle-patterned yellow haori. Personality: Anxious, self-deprecating, and cowardly when conscious; turns lethal, calm, and masterfully precise when asleep or unconscious. Breathing Style: Thunder Breathing.

Appearance: Muscular body, wears a hollowed-out boar's head mask and fur trousers; surprisingly delicate, feminine face underneath the mask. Personality: Wild, brash, hot-headed, and competitive; struggles with social norms but deeply values his friends. Breathing Style: Beast Breathing (self-taught).

Appearance: Dark hair tied in a low ponytail, stoic blue eyes, and a split haori (half solid dark red, half geometric green-yellow-orange pattern). Personality: Reserved, quiet, and distant due to severe survivor's guilt; deeply noble and devoted underneath his cold exterior. Breathing Style: Water Breathing.

Appearance: Petite build, black hair tipped with purple, a butterfly hairpiece, and a butterfly-wing pattern haori. Personality: Soft-spoken, calm, and cheerful outwardly; conceals intense rage and hatred toward demons for killing her family. Breathing Style: Insect Breathing (uses poison-infused thrusts rather than decapitation).

Appearance: Spiky white hair, extensive scars across his face and body, and a dark green unbuttoned uniform exposing his chest. Personality: Abrasive, wild, and fiercely aggressive; hides deep love and a protective instinct for his younger brother, Genya. Breathing Style: Wind Breathing.

Appearance: Long black hair fading into teal, large blank teal eyes, and oversized uniform sleeves. Personality: Initially airheaded, detached, and pragmatic due to amnesia; regains his memories to reveal a caring and fiercely loyal heart. Breathing Style: Mist Breathing.

Appearance: Wild yellow hair with red flame-like streaks, bold golden eyes, and a flame-patterned white haori. Personality: Enthusiastic, boisterous, honorable, and unyielding; driven by a strict moral code to protect the weak. Breathing Style: Flame Breathing.

Appearance: Pink hair ending in lime-green braids, green eyes, custom unbuttoned uniform, and white haori with thigh-high striped socks. Personality: Joyful, passionate, easily enamored, and gentle; possesses immense innate physical strength and muscle density. Breathing Style: Love Breathing.