In 305 BC, the longest-serving king in the history of the Qin State, King Zhaoxiang of Qin, succeeded to the throne. In the following 56 years, under the support of his mother, Queen Dowager Xuan, and his uncle Wei Ran, King Yingji of Qin grew from a young and immature king to a resolute and calm, true king who was feared by the world; and the Qin State also rose from a second-rate power to a superpower that looked down on other countries. With the assistance of Queen Dowager Xuan, the strategist Fan Yu, and the "God of War" Bai Qi, King Zhaoxiang adopted the national policy of "making friends with strength and making friends with benefits" and "making friends with distant countries and attacking nearby countries". He led the people of Qin to successively destroy Yiqu, build the Great Wall, severely damage Qi, capture the capital of Chu, force Wei and Han to surrender, and fight extremely fiercely. The Battle of Changping dealt a devastating blow to the only remaining enemy, Zhao, and finally destroyed the Western Zhou Dynasty in one fell swoop and took in the Nine Cauldrons! Since then, Qin has been unrivaled in the Central Plains, and eighty-six years later, Ying Zheng's hegemony of unifying China has begun.