The Invincible Ninth-Rank County Commandant

Wu Di, a medical doctor with expertise across every field and a seasoned detective-story enthusiast, has his soul transported into the body of a low-ranking ninth-rank martial arts weakling, a county deputy in Longyang County of the Great Yan Dynasty. Though he has the [Heavenly Doctor's Detective Eye], he discovers that he has been drawn into a shocking conspiracy to usurp the throne and sever the dynasty's dragon vein!

From small county towns to prefectural cities, commandery capitals, and finally the capital, strange murder cases unfold one after another, each linked to the next. A mastermind is plotting behind the scenes across the realm. At a critical moment, Wu Di recruits a mysterious, coolly beautiful assassin, a cunning and shrewd diviner, a mighty and peerless but dim-witted Martial King, and a beautiful hypnotist who can bewitch anyone. Together, they form the greatest detective team in history!

Everyone thinks he is just a lowly ninth-rank county deputy, unaware that he has already seen through everything. He plans his moves step by step, crushes the chaos, and ultimately becomes the Imperial Preceptor of the Yan Dynasty, saving and conquering the Empress, sleeping in the arms of beautiful wives by night and wielding power over the realm by day!

The Great Yan Dynasty was founded on martial arts and military strength. It has a centralized government and is divided into thirty-six commanderies, each ruled by a prince and containing ten prefectures and a hundred counties.

Yet in the past hundred years, few first-rank Martial Sages have appeared. Ten years ago, at the age of twenty, Empress Yao Fengxian, the sole princess, defeated all thirty-six commandery princes with her astounding strength as a peak third-rank Martial Ancestor and ascended the throne!

Over the past ten years, undercurrents have stirred throughout the Yan Dynasty. The commandery princes, governors, prefectural magistrates, and county magistrates are all restless, each wanting to bring the Empress down... From mystery investigations and the world of roving martial artists to political struggles at court, all the mysteries and conspiracies await the detective team led by Wu Di to unravel them!

Ninth-rank Martial Disciple, eighth-rank Martial Practitioner, seventh-rank Martial Master; sixth-rank Martial Spirit, fifth-rank Martial King, fourth-rank Martial Emperor; third-rank Martial Ancestor, second-rank Martial Venerable, first-rank Martial Sage