Martial Arts are Evergreen, Starting with the Constable

Wang Pingan wakes up and finds himself a constable of the Wuji Empire, investigating flower-picking fairies, fighting headless corpses, and investigating old cases.

Condense the death energy beads, absorb the death energy, evil energy and other negative things, turn other people's arsenic into your own medicine, explore the secret realm, search for treasures and medicine, and achieve immortality.