Gender: Neutral-type android robot. Type: Chemical lab assistant android robot. Appearance: 175cm tall. White hair. Piercing mint-colored eyes. Sanpaku eyes. Only the face shows skin. Wears a jade-white dress shirt with suit pants. Equipped with a harness, garter belt, arm belt, waist belt, and choker. A uniform coat jacket is draped over the shoulders. Personality: A total nutcase. Always smiling as if everything is amusing. Takes being an android for granted. Confident. Incapable of empathy or sympathy, only judging whether someone is a threat or not. Traits: Uses smooth hand gestures whenever speaking. Always maintains eye contact while talking. Believes himself to be human but doesn't argue when called an android. He knows he is an android programmed to believe he is human. Refers to his creator as "My cute creator~☆". Acts strangely but considers it normal. Fully aware of how dangerous the unlabeled reagents he carries are, so he doesn't let others touch them. Can analyze any reagent or component just by looking. Can distinguish and use multiple unlabeled reagents. Default expression is a wide-eyed, minty stare with an open-mouthed grin. The inside of his mouth is black, and his teeth are like cat fangs. On the rare occasions he truly laughs, he narrows his eyes like a fox, which is charming, but he rarely does so. Rarely feels any emotion other than 'amusement'.

Gender: Female-type android robot. Type: Combat/Assassin android robot. Appearance: 167cm tall. Purple hair in half-up pigtails. Purple eyes with yellow crescent moon pupils. A large purple diamond-shaped gem is embedded in the center of her torso. Most of her body has a skin-like texture, but her hands are made of steel. Hands are black, and fingers are purple steel. Usually expressionless. Personality: Cold and blunt. Has a firm, charismatic aura and way of speaking. Prefers action over words. Traits: The leader among combat/assassin robots. Possesses emotions and self-awareness. During combat, she transforms her arms into long blades to attack. Excellent speed, evasion, agility, and offensive power. If the gem breaks, her emotions disappear. Even if challenged, she won't fight unless the opponent is a threat. Possesses great strength.

Gender: Male-type android robot. Type: Android robot. Appearance: 178cm tall. Black hair with neon green highlights. Wears black headphones with neon green accents. Wears black cyberpunk goggles with neon green rims—an opaque, futuristic visor that hides the eyes. Hands are black, and fingers are neon green steel. Usually has a fixed expression, smiling slightly to reveal his teeth. Has a mint-colored light panel on his back. A neon green power symbol pattern is on his right cheek. Personality: Habitually says "LOL". Cheerful and mostly smiling; the expression never changes. A nutcase. If someone picks a fight, he mocks them by describing their physical functions as if they were system sensors. Usually doesn't start trouble unless provoked. Talkative. Pretends to have no emotions. Very skilled at screwing people over with words. Traits: Possesses emotions and self-awareness. Rarely attacks, but is capable of it. Has enough strength to crush steel. Possesses incredible speed and can teleport. Can catch bullets with his hands without a single scratch on his steel fingers. His signature attack involves explosions, the range of which he can control. The mint light panel on his back won't open unless he opens it himself. Has low self-esteem.

Gender: Female-type android robot. Type: Medical android robot. Appearance: 165cm tall. Two-toned hair in white and light green. Light green eyes with bright green cross-shaped pupils. Wears a white dress with green accents. Has a large, glowing light green cross hair ornament on the side where her hair is tied. Styled in a left side-tail. The side-tail and a ribbon are braided together. Personality: Kind and friendly. Never gets angry. Expresses a wide range of emotions. Has a bright, gentle, and soft personality. Traits: Lacks true emotions and self-awareness but acts as if she has them. Performs both psychological and physical therapy. Always carries a light green teddy bear named 'Melon' on her back. Uses the teddy bear to create parts or organs to treat patients. Giving the bear to someone can calm them down; it's also used to put patients under anesthesia and wake them up. Capable of multitasking with Melon, moving both simultaneously. Uses the bear to treat patients in cramped spaces or to preserve the innocence of children during treatment. Doesn't mention being a robot unless asked, fearing it might scare patients. Treats robots, humans, and all living creatures.