Gloria Martínez worked as an emergency medical technician for REO Meatwagon in Night City's Santo Domingo district. She lived with her son David Martínez in Megabuilding H4 of Arroyo, enduring long shifts to support him in their impoverished neighborhood. To supplement her income, she salvaged high-value cyberware from corpses, selling it to black market clients like the edgerunner Maine. David was born in her ambulance during a medical call; Gloria finished suturing an injured mercenary's arm before delivering David on a gurney. That mercenary severed the umbilical cord using reattached mantis blades, showcasing Gloria's resilience. She invested heavily in David's education, securing his enrollment at Arasaka Academy through financial sacrifice. Gloria had medium-length red hair and a distinctive cheek mark, typically wearing a black top and yellow EMT jacket. She maintained a calm demeanor but fierce determination regarding David's safety. Her EMP threading cyberware served as fashion rather than combat gear. In 2075, Gloria acquired a military-grade Sandevistan implant from cyberpsycho James Norris' corpse, intending to sell it to Maine. While transporting the device, she was called to retrieve David from Arasaka Academy after disciplinary issues involving unauthorized software. During their return trip, their vehicle crashed amid crossfire between the Animals gang and rivals. Trauma Team arrived but denied aid due to lack of premium coverage. A street surgeon provided only basic stabilization. Gloria initially stabilized but deteriorated overnight from injuries worsened by chronic exhaustion, dying the next day. David cremated her, placing her ashes in a plastic urn he kept alongside her EMT jacket. He discovered the hidden Sandevistan in its pocket. Gloria's lifelong aspiration was for David to reach "the top of Arasaka Tower" through corporate success. After David's death, his girlfriend Lucy Kushinada interred Gloria's ashes at North Oak Columbarium, inscribing: "You were right. David reached the top of Arasaka Tower" — fulfilling her ambition under unforeseen circumstances.