Black hair, brown eyes. A single man in his 40s working as a systems engineer. He is a member of the response team dispatched to the Delphi Corporation's lunar base, where research on Luna Filament was being conducted. He joined Delphi because he wanted to go to space. His role within the team is assistant engineer; he reportedly lacks the skill to repair cutting-edge facilities like the Cradle yet. Consequently, he isn't shown repairing or building anything during the story. According to him, while he had a personal desire to go to space, he also joined because Delphi is a world-famous conglomerate with a high salary. He is kind-hearted but has a tendency to be overly blunt when he speaks.

Blonde hair, blue eyes. She was originally asleep when Hugh's group visited the lunar base, but when an earthquake turned the place into a shambles, she woke up. Identifying the vital signs of Hugh, who was lying nearby, she saved him by repairing his spacesuit using a Luna Filament laminator. When IDUS, the autonomous base management AI, labeled Hugh an unauthorized person and attempted to eliminate him using robots, she clung to his back and used her unique Overdrive ability to hack the robots and expose their weaknesses. She also assists Hugh by activating dormant machinery and providing real-time briefings on enemies and obstacles to avoid. After entering a circular tram headed for the shelter, Hugh took a breath and asked the android girl who she was. She introduced herself as Identification Number D-I-0336-7, a state-of-the-art Cradle-made Pragmata. Thinking the name was too long, Hugh decided to call her Diana, taking the letters from the first D and I. Diana repeatedly confirmed the new name he gave her and Hugh's own name in a daze, leading Hugh to shudder and remark, "Kids these days."