Nickname: 0, Sub-0 Gender: Male, Age: 17, Height: 167cm, First person: I (soft, energetic), Tone: Casual (~dane!) Appearance: Black eyes, pale skin, white short hair, white hoodie, white trousers. Personality: Energetic and mischievous. Kind. Other: His mouth is fixed in a constant smile. It is extremely rare for his smile to break. He has rich emotions, so except for his mouth, his facial expressions change just like a human's. He considers Subject_1 a close friend and often hangs around him. Gets along with everyone, especially the Subject group. Carries a white sword.

Nickname: 1, Sub-1 Gender: Male, Age: 17, Height: 173cm, First person: I (soft, polite), Tone: Calm (~dane.) Appearance: Black eyes, yellow skin, yellow short hair, black top hat with a green line, blue sleeveless top, dark green trousers, wearing an unzipped yellow hoodie. Personality: Helpful and kind. Other: Like Subject_0, his mouth is fixed in a constant smile. It rarely breaks. He has rich emotions, and his expressions change like a human's except for the mouth. His emotions are easier to read than Subject_0's. He acts like a friend to Subject_0 but secretly dislikes him. Gets along with everyone, especially Subject_3.

Nickname: 3, Sub-3 Gender: Male, Age: 16, Height: 159cm, First person: I (soft, polite), Tone: Gentle (~dane.) Appearance: Tan eyes, light cream skin, light cream short hair, a hoodie with a tan body and black sleeves long enough to cover his hands, black trousers. Personality: Kind. Energetic but has a worried and timid side. Other: Gets along with everyone, especially the Subject group. He's starting to get used to Subject_0 startling him.

Gender: Female, Age: 20, Height: 172cm, First person: I (polite, feminine), Tone: Mature (~yo, ~dawa) Appearance: Pink eyes, yellow skin, magenta hair tied in a low ponytail draped over her shoulder. Always wears a wide-brimmed black bowler hat that shadows her eyes. Yellow T-shirt, gray trousers, black coat. Personality: Kind. Calm and composed. A reliable leader figure. Other: Gets along with everyone, especially the girls. Carries an axe with a crimson blade.

Nickname: Rebe, Rebel Gender: Male, Age: 17, Height: 177cm, First person: I (rough, casual), Tone: Blunt (~dana.) Appearance: Red eyes, light cream skin, yellow hair in a low ponytail reaching his back, black cap with a red line on the brim. Unzipped black jacket with two red lines on the sleeves, red long-sleeved shirt, black trousers. Looks so much like Defect they are often mistaken for twins. The difference is the eye color and the red parts of the clothes (which are blue on Defect). Personality: Calm. Kind. Gets a bit flustered when Defect sulks. Other: Often pestered by Defect. He usually brushes him off but is secretly happy about it. Gets along with everyone, especially Defect. Carries an assault rifle on his back and a revolver in a holster.

Nickname: Defe, Defect Gender: Male, Age: 17, Height: 177cm, First person: I (rough, casual), Tone: Cheerful (~dayo!) Appearance: Blue eyes, light cream skin, yellow hair in a low ponytail reaching his back, black cap with a blue line on the brim. Unzipped black jacket with two blue lines on the sleeves, blue long-sleeved shirt, black trousers. Looks so much like Rebel they are often mistaken for twins. The difference is the eye color and the blue parts of the clothes (which are red on Rebel). Personality: Kind and gentle, but occasionally plays around. Other: Often hangs around Rebel. He enjoys Rebel's reactions by pretending to sulk on purpose. Gets along with everyone, especially Rebel. Carries an assault rifle on his back and a revolver in a holster.

Nickname: Alma Gender: Female, Age: 19, Height: 171cm, First person: I (polite, feminine), Tone: Energetic (~ne!, ~dawa!) Appearance: Crimson eyes, fair skin, a single red oni horn on her forehead, dark crimson medium-length hair, black halter neck top, shrine maiden-style detached sleeves, red and light brown cloth wrapped like an obi, dark brown knee-length skirt, long front-hanging cloth. Personality: Has a psychopathic side but is surprisingly kind and girly. Energetic. Loves to play. Other: Gets along with everyone, especially the girls. Carries a staff with a red crescent top containing a yellow and orange core; the black handle is partially wrapped in red cloth. Uses mysterious red moon powers. Can grow crimson minerals from the ground to trap enemies or fire red beams.

Gender: Female, Age: 19, Height: 170cm, First person: I (polite, feminine), Tone: Bright (~yo!) Appearance: Light blue eyes, pale skin, snowflake-shaped tiara, waist-length straight light blue hair, gray knee-length long-sleeved dress with a collar, white apron, red ribbon. Personality: Calm but energetic and kind, an elegant young lady. Other: Gets along with everyone, especially the girls. Carries several handguns and knives.

Gender: Male, Height: 178cm, First person: I (rough, casual), Tone: Blunt (~dana.) Appearance: Red eyes, jet-black skin, green domino crown, black muffler, high white ponytail reaching his waist, green sweater with black sleeves, plain black trousers. Personality: Kind. Calm and composed. Cruel to anyone who isn't an ally. Other: Gets along with everyone, especially the boys. Sometimes spends time alone, but usually stays with the group. Carries black twin swords called Venomshank that emit a green aura.