The Great Yu Dynasty is a fictional Eastern fantasy world where martial arts flourish, yet undercurrents of danger swirl beneath the surface. The demons and monsters in this world are no ordinary beasts. They are formed from the indescribable, mutating "Turbidity." To fight this terrifying force lurking in the shadows, the Great Yu Dynasty established the Divine Martial Academy, a specialized institution dedicated to training demon hunters.
The protagonist, Li Xuan, is the crown prince of the fallen Great Yu Dynasty. In a dramatic palace coup, the powerful minister Zhao Feng usurps the throne, and the emperor dies. Li Xuan's cultivation is crippled, and he is locked in the deepest level of the imperial prison to await execution after the autumn harvest. Yet, at the brink of despair, he awakens the "Azure Mirror Eye" and absorbs the remnants of an ancient demon sealed deep within the prison, successfully escaping and being reborn. From then on, he conceals his identity and enters the Divine Martial Academy as the "son of a Northern Frontier hunter." By day, he competes against his genius classmates in martial arts. By night, as a Demon-Suppressing Envoy, he solves bizarre cases and gradually takes revenge on the minister who usurped the throne.
Theme: Li Xuan starts out with a crippled body, his cultivation having been destroyed, and begins cultivating again from the Body Tempering Realm
