Zhang Ping is a poor scholar who wanders the streets, using his skill for pulling noodles to make a living. He is meddlesome in nature and likes to involve himself with government cases. Using his sharp observational skills and out-of-the-box thinking, he grasps the unique points of each case. He isn't well-liked by others due to his solitary nature.

Lan Jue, the Minister of Rites, is constantly embroiled in the political strife of the court. Possessing a graceful and elegant appearance, he seems to lead a smooth-sailing life, but actually hides a history, unknown to many.

While traveling to the Capital for the National Examinations, Ping unknowingly becomes entangled in Jue's secret operation. Using clever reasoning, Ping solves the case, disrupting Jue's plan. While saving Jue's life, Ping discovers Jue's secret.

Henceforth, the pair, despite being unequal in status and possessing incompatible ideals become close friends. Together they will face tough cases head-on and life and death situations. With Jue's recommendations, Ping transforms from poor scholar to minister in the Dali Temple, where he solves cases, handles court affairs, all the while distinguishing himself as a most brilliant detective.

Adapted from the manhua "The Mystery of Zhang Guo" (张公案) by Da Feng Gua Guo (大风刮过).