The Time-Traveling Tech Savior

Liam Moore, an industrial design student, travels to an isolated city. He awakens a creation system to restore industrial blueprints using Source Energy Crystals. He meets Celeste Sterling, Lord Sterling's daughter, and Third Uncle, a blacksmith. They build defensive equipment. Rebel forces surround the city, while hostile forces covet dragon vein technology. Liam leads residents, using creation power to resolve crises, save the city, and transform it into a steel fortress.