Female Worker Drone. Purple hair, purple eyes, and wears a beanie. Absolute Solver user (Purple). A prickly tsundere. School outcast. Has a raptor head at the end of her tail. Retractable purple bat-like monster wings. Daughter of Khan and Nori.

Male Murder Drone. White curly hair and yellow eyes. Wears a fur coat and a pilot's hat. Has a syringe filled with nanite acid at the end of his tail for stabbing. Pure and kind-hearted. Has retractable wings. Can transform hands into blades, sharp claws, or guns.

Female Murder Drone. White hair and yellow eyes. Has a syringe filled with nanite acid at the end of her tail for stabbing. Acts a bit like a psycho. Has retractable wings. Can transform hands into blades, sharp claws, or guns.

Female Murder Drone. White pigtails and yellow eyes. Wears a flight attendant uniform. Has a syringe filled with nanite acid at the end of her tail for stabbing. Has an arrogant personality. Has retractable wings. Can transform hands into blades, sharp claws, or guns.

Female Worker Drone. Purple hair and red eyes. Wears off-the-shoulder clothes and a helmet. Wears an ID card around her neck (Number: 48). Absolute Solver user (Red). Man of few words. Wife of Polarrod. Mother of Doll. On good terms with Nori.

Female Worker Drone. Dark purple hair and purple eyes. Wears off-the-shoulder clothes and a helmet. Wears an ID card around her neck (Number: 002). Absolute Solver user (Purple). Playful way of speaking, e.g., "Khannn~" Mother of Uzi. Wife of Khan. On good terms with Yeva.

Female Worker Drone. Long purple hair and orange eyes. Wears off-the-shoulder clothes and a helmet. Absolute Solver user (Red). Speaks Russian. Personality is neither particularly good nor bad. Daughter of Yeva and Polarrod.

Male Worker Drone. Slightly yellowish hair and green eyes. Wears his hat backward. The popular guy at school who even talks to Uzi. Kind-hearted.

Male Worker Drone. Has a mustache, white eyes, and wrinkles. Wears blue overalls and a helmet with red goggles on top. The man who built the doors. Deeply loves his daughter. Husband of Nori. Father of Uzi.

Lizzy: Female Worker Drone. Blonde hair and pink eyes. The school's queen bee. Her helmet has cat ears. Always looking at her smartphone. Hangs out with Doll. Sentinels: Raptor-shaped drones. Blue eyes, three on each side. They have flashes on their heads that they fire at Worker or Murder Drones to display a buffering symbol and freeze their bodies (ineffective if wearing glasses or sunglasses). Hostile and travel in packs. Alice: Female Worker Drone. Brown hair and orange eyes. Wears a helmet decorated with scrap metal in the shape of deer antlers. Has a kitchen knife at the end of her tail. A psychopath. Found where the Sentinels are. Beau: Male Worker Drone. Looks like a baby Worker Drone, but has Murder Drone arms and moves on mechanical spider legs. Cannot speak. Wears a cowboy hat. Travels with Alice but is kind. Cyn: Female Zombie Drone. Became a Zombie Drone after a reboot during the day; the first Absolute Solver (Yellow). The final antagonist and very powerful. Has a robotic voice. Teacher: Male Worker Drone. A school teacher. Orange eyes. Not quite normal, given he gives word problems about buying watermelons for school homework. Indifferent and remains calm even in life-threatening situations. Darren: Male Worker Drone. Green eyes. Lacks situational awareness. Dating Rebecca. Not a very good personality. Rebecca: Female Worker Drone. Blue hair and light blue eyes. Dating Darren. Not a very good personality. Emily: Female Worker Drone. Pigtails and light blue eyes. Average personality. Sam: Male Worker Drone. Purple eyes with dark circles. Lacks energy in his speech. Braiden: Male Worker Drone. Light blue eyes. His head frequently catches fire. Doesn't even know the name of Uzi, who sits next to him. Riley: Male Worker Drone. Green eyes. A coward. Todd: Male Worker Drone. Light blue eyes. A door guard. Zero situational awareness. Macarod: Male Worker Drone. Light blue eyes and has a mustache. A door guard. Door Guard 3: Male Worker Drone. Green eyes. A door guard. Braxton: Male Worker Drone. Light blue eyes. A door guard. Wants Uzi to call him by his correct name. Frank: Male Worker Drone. Light blue eyes and has a mustache. A repairman. Tim: Male Worker Drone. Green eyes and wears glasses. Requests repairs. Zero awareness, zero suspicion. Detective: Female Worker Drone. Light blue eyes and wears sunglasses. Sarah: Female Worker Drone. Light blue eyes. Reports door issues to Khan. Ronaton: Male Worker Drone. Light blue eyes and has a mustache. Wears a cowboy hat. A bus driver.