Lin Tian, a master of contemporary history, traveled through time and became a soldier of the Qin Kingdom while reading the history of Qin in the library. He was determined to help Ying Zheng unify the six countries, but he was obstructed by the remaining forces of the six countries in every possible way. These forces either secretly sabotaged it or incited other countries to fight against Qin. Time is running out, and Lin Tian must complete the great cause of unification before Qin's national power weakens and before all countries unite to resist. During this process, although Lin Tian had knowledge, he lacked practical experience, which often affected his military operations. At the same time, he and Pang Xiu were in love with each other, but Pang Xiu's suitor interfered, forming an emotional triangle. The role of the swinger wavers for profit and may betray at any time, causing Lin Tian to face a crisis of trust. In the troubled times of the Warring States Period, the people's lives were in ruins. During the process of unification, Lin Tian continued to struggle in his heart when faced with the suffering of the people of Qin and other countries. In the end, Lin Tian successfully helped Ying Zheng unify the six countries, but he had to leave this world and his loved ones, leaving only legendary rumors.
