Protagonist: Jin Beichen (modern college student → the crown prince of Zhenbei General Mansion in the Tai Chi Dynasty)
Golden Finger: Modern Cold Weapon Manufacturing Knowledge + Basic Chemistry Knowledge + Management Knowledge
Collect money from corrupt officials and nobles in business, kill corrupt officials in politics, treat the people well, look for potatoes and sweet potatoes, solve the problem of famine and food shortage, solve one problem after another, there are Japanese pirates killing Japanese pirates, the emperor, if you want to kill me, ask my special forces if they agree, use the long sword to kill me with the pistol, I have the advantage.
Very cool, highly recommended