Quantum physicist Lin Wanyue, after an explosion in her laboratory caused her soul to be destroyed, she found herself in limbo. Fortunately, it is bound to the "Star Track System" - a time and space sandbox that can deduce the future of the dynasty, a civilization tree that can be exchanged for modern technology, and can even rewrite the fate of key figures.
Facing the sinister emperor Xiao Yan who is also a time traveler who hides the secret of killing her brother, she uses calculus to expose the fraud in the imperial examination, uses thermodynamics to improve the iron-making process, and uses quantum entanglement to break the blockade of the emperor's system: she changes the eight-legged theory into mathematical theory to allow children from poor families to enter the palace; builds gunpowder ballistae to ward off the barbarians, uses hot-air balloons to detect and defeat the enemy; builds a telegraph network to connect the whole country, and uses penicillin to quell the plague...
When the star track sand table warns that "the dynasty will die within ten years," when overuse of the system causes memory to disappear, and when the Space and Time Management Bureau wants to erase the two worlds, Lin Wanyue holds the technological drawings in her left hand and the court authority in her right hand. From a life-and-death game to breaking through side by side, she and Xiao Yan finally open up a heaven-defying road of "dual time and space symbiosis" - who said that ancient times cannot tolerate the roar of steam? She insisted on letting electric lights illuminate the palace walls, letting planes fly over the Great Wall, and letting Da Chu and modern China reach the pinnacle of civilization at both ends of the hub of time and space!
