Start with a Pile of Corpses and Deduce the Defense of the Lonely City

In the seventh year of Chongzhen, it snowed heavily. Lu Yan wakes up from the dead, comes to the troubled Ming Dynasty, and unlocks the historical deduction panel. Deducing the battle situation and scanning people's hearts, all costs must be paid with real money. The plague was rampant in the city, the squire secretly collaborated with the bandits, and five thousand thieves came to the city. There are no elite soldiers in hand, and there is no surplus food in the treasury. There is only a bowl of hot porridge to gather the homeless people. Eliminate traitors and sycophants within, defend against powerful enemies externally, forge firearms, cultivate fields, and protect thousands of people with an isolated city. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.