Xiao Li, a modern military scientist, is busy developing new weapons in the laboratory. A sudden experimental accident caused his vision to go dark and he lost consciousness. When he woke up again, he found himself in a strange place, surrounded by antique buildings and people wearing Tang Dynasty costumes. Xiao Li realized that he had traveled to the Tang Dynasty.
Xiao Li, who had just arrived, was full of confusion and curiosity about this era. With his modern knowledge, he began to try to integrate into this society. By chance, he met a general of the Tang Dynasty. The general admired Xiao Li's knowledge and ideas and invited him to join the army and serve the Tang Dynasty.
