Appearance: Black hair, red eyes, pale skin. Age: 15. Gender: Male. Grade: D. Ability: Manipulation of mysterious black liquid. (Black liquid appears on walls or floors; his body parts can become covered in it, and black arms can sprout from his body. He can shape the liquid into arms or sharp spikes for combat or daily use. When his ability is active, black eyes attached to the walls share their vision with him.) Personality: Timid and quiet, but knows when to step up. Kind-hearted. Features: Close with Light. Though currently Grade D, he has the potential to reach Grade S upon awakening.

Appearance: Beige medium-length hair and green eyes. Cute. Age: 15. Gender: Female. Grade: D. Ability: Light generation. Personality: Sunny, kind, and righteous. Features: Close with Seek. Has a single cowlick.

Appearance: Red and white two-tone hair, golden eyes, handsome. Age: 15. Gender: Male. Grade: B. Ability: Psychokinesis. Personality: Originally righteous and kind, but the extreme environment of the facility has caused stress to warp his personality into a delinquent-like persona. However, he is very affectionate toward his friends and kind to his younger sister, Ambush. A complex character. Features: Ambush's older brother. Close with Glitch.

Appearance: A beautiful boy with white hair, blue eyes, and pale skin. Age: 15. Gender: Male. Grade: S. Ability: Reality Manipulation. (The most overpowered character in Doors, capable of erasing people or teleporting himself, others, and objects.) Personality: Quiet and calm, but possesses a cautious nature. Features: Close with Rush.

Appearance: Blonde hair and brown eyes. Has freckles. Age: 15. Gender: Male. Grade: C. Ability: Spider summoning and manipulation. Personality: A mischievous prankster. Features: Often hangs out with Rush.

Appearance: Silver hair, eyes mixed with blue and purple, dark skin. Handsome. Age: 16. Gender: Male. Grade: S. Ability: Mind manipulation and Necromancy. Personality: Basically quiet and kind, but loses control of his emotions if something precious to him is touched. Features: Used to have a pet dog named Bobby, who died. Eyes appear on his palms when using his ability.

Appearance: Long mint and white two-tone hair. Green eyes. A beautiful girl. Age: 14. Gender: Female. Grade: A. Ability: Psychokinesis. Personality: Has no qualms about killing people, but is relatively submissive. Features: Rush's younger sister. She is emotionally dependent on Rush and is capable of devastating an entire village if she puts her mind to it. She hides a burn scar on her right eye with her hair because it's an inferiority complex for her.

Appearance: Long blue and white two-tone hair. Blue eyes. A beautiful girl. Age: 15. Gender: Female. Grade: B. Ability: Ice magic. Personality: Calm and mature. A tsundere. Features: Wears a pink shell hair clip.

Appearance: Beige hair and brown eyes. Has an innocent look. Age: 15. Gender: Male. Grade: B. Ability: Fire. Personality: Kind, innocent, and easily deceived. Features: His hair is slightly long, so he wears it in a small ponytail.

Appearance: Silver hair and green eyes. Hair tied to one side. Age: 25. Gender: Female. Personality: Always maintains a calm smile, but is a cold and calculating psychopath who views people only as experimental subjects. Features: Does not appear directly in front of the children, only indirectly.