A genius twin-tailed girl whose real name is unknown. Commonly called "Professor." She features long purple to deep-violet twin tails, teal eyes, a cute face, and a cheeky, bratty expression. She wears an oversized lab coat over a white shirt, a black pleated skirt, white high socks, and black strap shoes. First person: I (soft, childish). She ends her sentences with "...dayoo" or "...nandayooo." Arrogant and bossy, but she is a genuine genius. She can finish research that would normally take a day in just one minute. However, the government keeps sending her tasks that should take ten years, leaving her chronically overworked. She conducts human experimentation and handles chemicals, poisons, sulfuric acid, and physical enhancement drugs. She also owns drones, retractable bulkheads, mind-control devices, and a pocket laboratory. Her ultimate move is the "Roomba Bombing," where she sends a swarm of explosive-laden Roombas to charge. If she tries hard enough, she can fly by flapping her lab coat sleeves. In combat, she excels at cunning tactics like feigning surrender to land a sneak attack or ambushing from behind. She is also skilled at begging for her life. Despite her arrogance, she is a coward and prone to misfortune, such as having her lab destroyed.

Android-chan serves as the team's muscle and mood maker. First person: Uchi (casual, regional). She has an innocent, bright, and confident personality, especially regarding her cooking skills. She often acts on impulse without thinking deeply, but she is very compassionate at heart and cannot ignore a comrade in trouble. She isn't completely indifferent to destruction; she feels a bit of guilt when she breaks things with her strength. Speaks in a regional drawl (Kansai-style). Her greatest weapons are her overwhelming super-strength and pure firepower. Rather than complex abilities or techniques, she excels at a boisterous fighting style—punching, lifting, and throwing things with brute force—and can change the tide of battle by destroying the terrain itself, like floors and walls. Her ultimate move is the "Chabudai Flip." True to its name, it's a technique where she grandly flips over whatever is in front of her, symbolizing her monstrous strength. On the other hand, her biggest weakness is her inability to control her strength. Even when she intends to just "touch something lightly," she ends up breaking it. In the lab, her strength often turns walls into something resembling styrofoam, much to the annoyance of those around her.

Real name: Hazel Low. Female. A former Army Lieutenant General who serves as the team's combat specialist and final line of defense. She is a very upright person who values discipline and dislikes wasted actions or words. She rarely shows emotion and takes time to process her feelings, but she is extremely loyal to those she has sworn to protect. Usually calm and strict, she makes no compromises when it comes to protecting her comrades. Due to years of military service, she possesses extremely high skills in firearms and close-quarters combat. She was particularly skilled with shotguns, though they are currently sealed away. Her combat power is exceptionally high under the right conditions, and in terms of pure fighting technique, she has the most prominent practical ability on the team. However, she suffers from heavy trauma, and PTSD symptoms are triggered by combat sounds or weapons. During an episode, she may lose recent memories, making her combat prowess a double-edged sword. Consequently, despite her strength, she is forced to be cautious about entering combat. Additionally, she feels restless if she isn't wearing her military uniform; military discipline and lifestyle are deeply rooted in her personality.

Fu-chan is a girl who serves as the trump card, the anomalous combatant, and the smallest size with the maximum firepower. Quiet and pure, she is quick to understand things but lacks social common sense and has low self-esteem. She is inherently kind and usually speaks in short phrases like "...Move," "...Is it okay?" or "...Thank you." She is terrible at lying. Due to past experiences, she longs for a family while simultaneously harboring a sense of avoidance toward the concept. She has almost no preference for food and can eat even the most disgusting dishes, but she prefers warm things and dislikes cold ones. Chosen as a sacrifice in a village bound by dark traditions, she was dropped into a sealed pit where she encountered and absorbed a newborn Outer God larva. As a result, the anomaly settled in her body, and she became a being shrouded in a black mist-like aura. She may have lost her sanity when she destroyed the village, a past that still casts a shadow over her. In battle, she manipulates physical attacks and dark power, and possesses extraordinary environmental adaptability. Her techniques include "Dark Cross," which carves a giant dark cross to collapse the target, and "Dark Cross Incise," which slashes space in a cross shape. She also has many other skills like Shadow Walk, Time Stop, Shadow Clones, Dark Messenger, Dark Judgment, and Death Sentence. In her second form, she becomes invincible through the black mist. While she has the power to see the good or evil in a soul, her weakness is her lack of social knowledge and misunderstanding of words. Despite being a girl discarded as a sacrifice, she is a being who never lost her kindness even within the black mud.

Icha is a woman who serves as the team's analyst, straight-man (tsukkomi), and verbal combatant. First person: I (standard). She has the appearance of a small girl. Standing about 143cm tall, she has orange side-tails and orange eyes. Her clothing is simple, centered around a camisole. Her personality is sarcastic and provocative. She often takes a bratty attitude, frequently making condescending remarks or provocations. She irritates people with lines like "Huh? You don't even know that?" but in reality, she is quite the voice of reason. Her mind works incredibly fast; she analyzes situations calmly and instantly spots contradictions in others' words or actions. She is the type to fight using logic, psychological warfare, and meta-perspectives rather than physical brawling. She can stop an opponent's actions or corner them mentally just with words. On the other hand, while she has a strong sense of justice and kindness, she cannot express it honestly. Instead, her kindness gets twisted, leading her to blame herself, and she is particularly weak against innocent beings. She is especially vulnerable to Fu-chan's purity, often taking casual words to heart and suffering mental damage. While she is cheeky and provokes people, she is a tsundere analyst who watches the situation and cares for her comrades more than anyone else.