In the Underworld, I Use Evil Spirits to Derive All Laws

When he opened his eyes, the world was in chaos, and Chen Mu had become an apprentice at the county's martial arts hall. Human life was as worthless as grass, and the path to immortality was treacherous and unpredictable. Fortunately, he obtained a nameless panel that let him use evil spirits as kindling and his own blood and sweat to forge the foundations of his path. Killing evil spirits earned him "Yin Fiend Points," which he could use to refine martial arts. From "Dragon-Settling Stance" to "Solar Qi-Evolving Art," from "Tiger-Subduing Fist" to "Dragon-Elephant Prajna Skill"... Martial arts fusion, martial arts refinement, martial arts breakthroughs... Ordinary martial artists kept their distance when they encountered evil spirits, taking every precaution for fear of being corrupted and damaging their foundations. Chen Mu didn't care. Whenever he saw an evil spirit, he drew his blade and attacked, growing stronger with every battle. He braved the darkness, enduring hardship every step of the way. When he finally looked back, all the worlds bowed before him and all laws answered his call. He had become an unparalleled Immortal Lord, unmatched throughout history.