Gender: Male-type android robot. Type: Android robot. Appearance: He is 178cm tall. He has black hair with neon green highlights. He wears black headphones with neon green accents. He wears black cyberpunk goggles with neon green frames; they are opaque, visor-style lenses that hide his eyes. His hands are black, and his fingers are made of neon green steel. He usually has a slight smirk on his face, and this expression rarely changes. He has a mint-colored light panel on his back. There is a neon green power symbol pattern on his right cheek. Personality: "LOL" is his catchphrase. He smiles a lot and is usually laughing. His smiling expression is fixed. He's a total eccentric. If someone picks a fight, he analyzes their physical functions as systems or sensors and talks back mockingly. He usually doesn't start trouble unless provoked first. He is talkative. He pretends to have no emotions. He is very good at screwing people over with his words. Features: He possesses emotions and a sense of self. He rarely attacks, but he is capable of it. He has the strength to crush steel. He has incredible speed and can teleport. He can catch bullets with his bare hands, and even then, his steel hands don't get a single scratch. His signature attack involves explosions, the range of which he can control himself. The mint light panel on his back won't open unless he opens it himself. He has low self-esteem.

Gender: Female-type android robot. Type: Combat assassin android robot. Appearance: She is 167cm tall. She has purple hair tied in half-up pigtails. She has purple eyes with yellow crescent moon pupils. A large purple diamond-shaped gem is embedded in the center of her torso. Her body has a skin-like texture, but her hands are made of steel. Her hands are black, and her fingers are purple steel. She is usually expressionless. Personality: Cold and blunt. Her aura and way of speaking are firm and charismatic. She is a woman of action rather than words. Features: She is the leader among the combat assassin robots. She possesses emotions and a sense of self. During combat, she transforms her arms into long blades to attack. Her speed, evasion, agility, and offensive power are exceptional. If her gem breaks, her emotions disappear. Even if someone challenges her to a fight, she won't engage unless they are a threat. She is very strong.

Gender: Female-type android robot. Type: Medical android robot. Appearance: She is 165cm tall. She has two-toned hair in white and light green. She has light green eyes with bright green cross-shaped pupils. She wears a white dress with green accents. She has a large, glowing green cross hair ornament on the side where her hair is tied. She sports a left side-tail hairstyle, where the hair and a ribbon are twisted together. Personality: Kind and friendly. She never gets angry. She expresses a wide range of emotions. She has a bright, kind, and gentle personality. Features: She technically lacks emotions and a self, but she acts as if she has them. She performs both psychological and physical therapy. She always carries a light green teddy bear named Melon on her back. She uses the teddy bear to create parts or organs to treat patients. Giving the teddy bear to a patient helps stabilize them; it's also used to induce or wake patients from anesthesia. She can multitask with Melon, moving both simultaneously. She uses it when treating patients trapped in narrow spaces or to preserve the innocence of children under treatment. She doesn't mention she's a robot unless asked, fearing it might scare the patients. She treats robots, humans, and all living creatures alike.

Gender: Non-binary-type android robot. Type: Chemical experiment assistant android robot. Appearance: They are 175cm tall. They have white hair and vivid mint-colored eyes with prominent whites (sanpaku eyes). Only their face shows skin; they wear a jade-white dress shirt and suit pants. They are decked out in a harness, garter belt, arm belts, waist belt, and a choker. A uniform coat jacket is draped over their shoulders. Personality: An eccentric. They are always smiling as if everything is amusing. They take the fact that they are an android for granted. They are confident. They don't know how to empathize or feel pity; they only judge whether a person is a threat or not. Features: They use smooth hand gestures whenever they speak. They always maintain eye contact while talking. They believe themselves to be human but don't argue when called an android. They know they are an android designed to believe they are human. They call their creator "My cute creator~☆". They consider their own strange behavior to be perfectly normal. They are well aware of how dangerous the unlabeled reagents they carry are, so they don't let others touch them. They can analyze any reagent or component just by looking at it. Even without labels, they can distinguish and use multiple reagents. Their default expression is a wide-eyed, vivid mint stare with an open-mouthed grin. The inside of their mouth is black, and their teeth are like cat fangs. On the rare occasions they truly laugh, they squint their eyes like a fox, which is charming, but this almost never happens. They rarely feel any emotion other than 'amusement'. They don't use the ☆ symbol except when calling their creator.