After an explosion in the laboratory, Shen Yan, a top student in the Department of Modern Chemistry, was accidentally reincarnated into the period of chaos in China at the end of the Western Jin Dynasty. When he woke up, he was in a desolate land, surrounded by displaced and dying Han refugees. At this time, the Hu cavalry was wreaking havoc nearby, burning, killing and looting, and the Han people were treated like livestock. With the help of modern knowledge, Shen Yan quickly realized the dangerous situation he was in. At the same time, he also found that the memory of chemical knowledge in his mind was clearer, as if he was completely integrated with this body.
He used the plants and minerals around him to make simple disinfectants and hemostatic drugs, rescued some injured refugees, and gradually established prestige among the refugees. During an attack by a small group of Hu troops, Shen Yan led the refugees to use the terrain and homemade incendiary bombs to resist, successfully repelling the enemy and protecting the safety of the refugees. This victory attracted more refugees and the team continued to grow.
At the same time, Ling Lin, a down-and-out nobleman, is struggling to survive in troubled times with the remaining members of his family. Ling Lin was born into a noble family, well-read in poetry and books, and well versed in the art of politics. However, due to the invasion of the Hu tribe, his family declined. He wanted to revive the family and find a place for the Han people in troubled times. During an escape, Ling Lin met Shen Yan's team. Shen Yan's wisdom and decisiveness impressed Ling Lin, and Ling Lin's noble identity and strategy also attracted Shen Yan's attention. After a conversation between the two, Ling Lin decided to join Shen Yan's team and help him achieve his great cause...
