As soon as Jiang Yue opened her eyes, she became a young lathe worker at the Hongxing Machinery Factory in the 1980s. Good news: She is a mechanical engineer graduated from a prestigious university in the 21st century, and her theoretical knowledge is 40 years ahead of this era. Bad news: She dressed up as the "sick beauty" known to everyone in the factory, fell down when the wind blew, couldn't do anything, and kept her job only because of her pretty face and her father who died of a work-related injury. Even worse news: The Red Star Factory has old equipment and backward technology. It has suffered losses for three consecutive years and is about to go bankrupt. More than a thousand people in the factory are waiting to be laid off. Colleagues pointed behind her back: "Look at how delicate she is. Not to mention turning a machine, it's hard to move a wrench, isn't it?" The old masters in the technical department sighed: "Young people can't bear the hardship, and the factory has no hope." Competitors from the branch next door looked at her with eager eyes: "Red Star Factory? It will be scrap metal by the end of the year." Jiang Yue wiped her face, looked at the rusty drawings in her hand and the old lathe that made a loud clang, and showed a kind smile. :) Bankruptcy? Laid off? Doesn't exist. Starting from improving a small bearing, to optimizing the entire production line; from shocking the old master with hand-drawn three-dimensional explosion diagrams, to introducing the "advanced" 5S management method. Jiang Yue uses actions to tell everyone what technology is the primary productive force! Small Theater: One day, engineer Lu Chuan, a model worker in the province, a young talent, and known as the "factory grass", saw the legendary sick beauty who only knew how to moan, with one hand on her hip and a wrench in the other, spitting and explaining tolerances to a group of old masters. "Here! Look at this accuracy!