Ling Yue is a top military doctor and special forces military consultant in modern China. With 20+ years of surgical experience, his medical skills are at their peak. At the same time, he is a top strategic and tactical expert, proficient in ancient and modern Chinese and foreign military theories (Sun Tzu's Art of War, Theory of War, modern special operations, etc.), And has excellent physical fitness (due to military training requirements). During an international rescue mission, an accident occurred. Time travels back to about 260 BC - 245 BC. At this time, the Qin State was already very powerful, but the unification war had not yet fully begun, and the six countries were still resisting fiercely. The protagonist is surviving → integrating → using his own abilities to change history, not only to help Qin unify the six countries, but also to create an unprecedented global empire. Became a legendary Qin doctor.