Take Down the Fox Demon at the Beginning, and I Will Kill You Through Nine Heavens and Ten Earths

This is a world where demons are rampant and evil spirits are everywhere. Gu Zhao traveled through time and became a handyman in the Demon Suppression Division. I thought I would be fine as long as I survived. However, you are faced with difficulties at the beginning, and you have to face the ferocious fox demon, on the line between life and death! Fortunately, the [Sin Karma System] was activated in time! As long as you kill the criminals, you can plunder their criminal karma and infinitely improve all martial arts skills! The basic skill "Pure Yang Kung" consumes 85 sins, evolved for twenty-seven years, and advanced to "Big Sun Baking Furnace Fist"! The basic martial arts "Three Demon-Slaying Styles" consume 600 sins, sit quietly for a hundred years, comprehend the truth, and transform into the "Twelve True Solutions to Demon-Slaying"! While countless cultivators were still practicing hard, Gu Zhao had already advanced the technique to the realm of myth by slaying demons. "Monsters, traitors, false gods, evil immortals... In this hell on earth, I will follow your sins and reach the top!"