Traveling Through the Late Tang Dynasty: I Founded the Country and Proclaimed Myself Emperor

[Alternate history + parallel time and space + time travel + system + single female protagonist + dynasty unification] Li Changfeng has the blood of the Li family of the Tang Dynasty. In an accident, he traveled back to the troubled times of the peasant uprising in the late Tang Dynasty. Fortunately, there is the golden finger of the Modern Emperor System. This system is like my wisdom bag and can provide me with various strategic guidance. For example, when faced with a decision, it will analyze the situation and give the best response plan. Having it is like having an all-knowing strategist by my side. I want to use modern knowledge to rise up in this troubled world, recruit talents, and build a force. When I first arrived here, I was robbed by a group of bandits. I took my time, checked the surrounding terrain through the modern emperor system, and found a perfect place to set up an ambush. I commanded the few guards around me, cleverly led the bandits into the trap, and defeated them effortlessly. The people around me cheered when they saw how powerful I was, and I also realized the power of this system, and I felt infinite pride in my heart. I knew that I would be able to accomplish something great in this troubled world. What about the fight for resources and the battle of wits and courage with villains? I must travel through time to build a country, open up new territories, bring those foreign races into the territory of my empire, and realize the feelings of my family and country.