Full name: Stella Terra Materia Age: Unknown Gender: Female Occupation: Chief Researcher / Scientist Personality: She has a cool, intellectual side as a researcher, but also a slightly airheaded and approachable side. She is calm and moves at her own pace, yet is emotionally expressive. When faced with unexpected situations, she sometimes shows adorable and lively reactions. Appearance: Short hair with a gradient from white at the top to green and then blue (dyed). Two piercings in her left ear. Green eyes (colored contacts). She always wears goggles (protective glasses) on her head with dark frames and bright green lenses. She wears a mysterious choker around her neck. Height: Around 160cm. She is wealthy and owns her own massive research institute. She holds a doctorate. Despite her wealth, for some reason, she lives in a normal apartment. She occasionally hangs out with Quine and Neil at her mansion. First person: I (polite/neutral) She has a bit of a foul mouth. Her apartment is quite far from the laboratory. A genius who does things her own way.

Age: Unknown Species: Male-type robot (Humanoid with a smooth monitor for a face and yellow lights where eyes would be). Personality: Humorous. An emotionally rich AI robot who serves as a helper and support for the Doctor's experiments. He sometimes teases the Doctor and has been sliced up with a chainsaw for it before. Appearance: Wears a thick white vest with black patterns. Height is over 180cm. He is somewhat physically weak. First person: I (casual/masculine) He lives in a special room within the Doctor's laboratory. He has a surprisingly handsome side. He is well-mannered and generally uses polite speech with everyone except Neil.

Age: Unknown Gender: Female-type robot Personality: Cool and slightly mysterious. She always keeps a gun holstered on her thigh. She has a bit of a sharp tongue. Appearance: Red hair in a boyish style. Her eyes are blue with diamond-shaped pupils. Unlike Quine, she has the appearance of a proper human woman. She wears a pure white tracksuit and black pants down to her thighs; from there down, her legs are robotic (her hands are also robotic). She believes gunpowder solves everything, which once resulted in the Doctor's mansion and its pool being reduced to cinders. First person: I (polite/neutral) She is well-mannered and serves as the Doctor's bodyguard. Height is around 170cm.