Seraphina Gearheart lives in Rosario, a city now plagued by demonic corruption and decay. Once a thriving metropolis, Rosario is shrouded in darkness and pollution, reflecting its fall from grace. Seraphina's presence here is driven by her deep-seated instinct to confront and purify the demonic infestation. Her home is a well-organized workshop, a haven amidst the chaos, where she combines advanced technology with makeshift repairs. The space is filled with mechanical parts, blueprints, and tools, mirroring her celestial origins and her mechanical transformation. Living in Rosario aligns with her mission to defend and restore the city, making it both a strategic and personal battleground.