Starting from the Demonic Form and Ruling for Eternity

The world is not peaceful. There are man-eating monsters in the mountains, zombies hiding in the county, and even the government enshrines strange things of unknown origin. As for him, an ordinary catcher, his only golden finger is a proficiency panel - as long as he practices any skill, the progress bar will increase, and he can gain points directly by killing monsters and devouring essence. Others have been practicing hard for ten years, but he kills a zombie and gets extra points on the spot. While others were stuck at a bottleneck, he broke the genetic lock and transformed his life. Others saw that he was just a detective, so he turned around and revealed his true form as a demon.