Lin Chen, a top modern chemistry PhD, is conducting an experiment to synthesize a new catalyst when an explosion rocks the laboratory. He unexpectedly transmigrates to the end of the Qin Dynasty, taking over the body of the strategist Zhang Liang just after his failed assassination attempt on the First Emperor, while he is on the run. Drawing on his solid knowledge of chemistry and modern way of thinking, along with Zhang Liang's own strategic talents, Lin Chen assists Liu Bang in overthrowing Qin and defeating Chu, ultimately helping establish the Han Dynasty.
