Gaowu Ming Dynasty: from Jailer to Invincible

[Alternate History + High Martial Arts + Ming Dynasty + No System] Han Xing traveled through the Ming Dynasty and became a prison jailer. In this Ming Dynasty, martial arts are prevalent and demons and ghosts are causing chaos. Han Xing does not have the slightest force and his life is in danger at any time. Fortunately, he has an ancestral jade pendant. When activated, the jade pendant has a strange function and can absorb the true energy in other people's bodies. Fifty years later, demons and ghosts caused chaos, and Han Xing, who guarded the prison, walked out of the prison, showing his sharpness and becoming invincible in the world!