Record of Bian Feng's Firearms Innovation in the Late Ming Dynasty

When Lu Chen woke up on the Yingzhou city wall, arrows from the Mongolian cavalry were pouring down. This graduate student in the Department of Chemistry found that he had become the lowest-level pawn of the Ming Dynasty's frontier army, and that the famous "Yingzhou Victory" in history was about to end with the annihilation of the entire army. Relying on the saltpeter purification technology, he created an earthen thunder that exploded the Mongolian camp... From the formation of the first "Chemical Firearms Battalion" to the establishment of the "Tingyulou" intelligence network covering the whole country; from the subjugation of the southwest chieftain wolf soldiers to the negotiation with the Portuguese expedition team to introduce the Franco machine gun... What frightened him even more was the six strange women that had never been recorded in the history books: the orphan girl of a general who could cross the Yangtze River with a hundred steps, the daughter of a merchant who controlled the lifeline of overseas trade, and the Miao saint who was proficient in toxicology and medicinal properties... They appeared in his life like stars one after another. Behind each of them, there was a large net that could change the fate of the empire. When Lu Chen finally stood outside Juyong Pass and looked at the 100,000 cavalry he had trained with his own hands, a question became increasingly clear: Is he saving this dynasty, or is he creating a more terrifying monster with his own hands?