I Level up by Eating Spiritual Grass Like Crazy and Kill Gao Wu

[High martial arts + leapfrog fighting + absolute crushing + decisive killing + spiritual energy recovery + eating spiritual grass to level up] In the Age of Ending Law, spiritual energy suddenly revived, and Su Xuan awakened the plug-in system. This system has two major effects. 1. Eat spiritual grass to level up 2. God rewards hard work, no talent is needed, just a few times you can master the skills and martial arts. Su Xuan jumped six levels in three days, which shocked all the warriors. At this point, Su Xuan became a bully, attacking anyone he didn't like. "Your cold iron gun is good, I want it." "Give me your qualifications for treasure hunting in secret realms." "Oh? Are you from a hidden family? Okay, I want your family's martial arts and techniques." "You are the pillar of the country, so what? If I kill you, I will be the pillar of the country!" Su Xuan also accidentally obtained the ancient SSS-level skin-forging technique - "Golden Body Skin-Forging Technique" In addition, he also comprehended King Lu's Demon-Slaying Fist: [One punch can break a thousand bodies: Accumulate strength and punch out. This punch can exert 10 times the power of the host. [Two fists break the void: The golden fist can cut through the void, regardless of spatial distance. The fist can be flashed anywhere within 500 meters. [Three fists hold up the sky and the earth: The golden fist expands rapidly, and the maximum volume can expand to a hundred feet. The huge golden fist ignores any dodge and can hit the target 100% of the time.