Love of Mountains and Rivers

Wei Wuzu was founded by Wu Qi, a famous military strategist in the Warring States Period, according to historical records. In the Battle of Yin and Jin, he defeated the Qin army of 500,000 troops with 50,000 troops! Under Wu Qi's command, he achieved a brilliant record of "seventy-two battles, sixty-four victories, and the rest were tied." The protagonist Lin Xuan accidentally traveled to the selection site of Wei soldiers more than 2,000 years ago during archaeology. He was successfully selected as a soldier by virtue of the special training he received in modern times. However, he was involuntarily caught up in the chaos of the times. With a modern mindset, how could he rely on his understanding of history and some technologies that were ahead of his time to protect himself and the people he cared about during the Warring States period when princes were competing for hegemony?