A talented woman majoring in engineering in the 21st century accidentally traveled back to the 1990s and became an ordinary female college student. Her father and eldest brother are factory workers, her mother is the director of the neighborhood committee, and she has three younger brothers at home. She is doted on by the whole family. The heroine decisively changed her major and delved deeply into the field of engineering. With her solid professional ability, she became an engineer. She entered her father's factory and successively developed a number of new electrical appliances. During this period, she met the male protagonist, a soldier who had returned from his job and served as the workshop leader. He was calm and reliable, always silently guarding and fully supporting her research. The two work together to defeat the sabotage plots of overseas spies, use technological innovation as an edge, work side by side to help the country's industrial development, and work together towards the prosperity and glory that belongs to the era.
