A brilliant woman with an engineering background in the 21st century unexpectedly transmigrates back to the 1990s, becoming an ordinary college student. Her father and eldest brother work in a factory, her mother is the head of the neighborhood committee, and she has three younger brothers. Her whole family dotes on her. The heroine decisively switches majors and devotes herself to engineering. With her solid expertise, she becomes an engineer and joins the factory where her father works, developing one new electrical appliance after another. Along the way, she meets the male lead, a soldier who has returned from military service and now leads a workshop team. Steady and reliable, he quietly protects her and wholeheartedly supports her research. Together, they foil a plot of sabotage by foreign spies, wield technological innovation as their weapon, and help drive the nation's industrial development, setting out together toward the prosperity and glory of their era.
