Li Chengqian of the Tang Dynasty Proclaimed Himself Emperor at the Beginning and Summoned Dian Wei

(Farming, infrastructure, not Wudiwen.) I am Li Chengqian, and I had a dream. I dreamed that my rebellion failed, I was deposed as a commoner, I was exiled to Qianzhou, and I died of illness in my hometown. I also dreamed about the Anshi Rebellion, the Huangchao Rebellion, the rise and fall of thousand-year dynasties, and Hu Qi's invasion of the Central Plains... When he woke up from the dream, a system was bound to him, and the system could not be activated until he became emperor. He looked at the imperial seal on the desk and made the boldest decision in his life.