Xuanhuan: From the Start, I Have a Soul-Devouring Blade and Sign-In Self-Destruct

【Xuanhuan immortality + cultivation with a System + transmigration and rebirth + soul-devouring evolution + invincible power fantasy + decisive and ruthless】 A high school graduate from Earth transmigrates and is reborn in a world of cultivation. Starting with nothing but a rusty woodcutter's knife, he turns the entire cultivation world upside down. “Want to compare talent with me? My metal, wood, water, fire, and earth spiritual roots are all maxed out!” “Want to compare cultivation with me? I have countless divine arts and secret techniques. They all work together, and they can even cultivate and raise my power on their own!” “Want to compare abilities with me? I can cultivate qi, temper my body, forge weapons, and practice alchemy. There's nothing I can't do!” “Want to compare wealth with me? I have so many top-grade spirit stones that I could never spend them all!” “Want to compare backing with me? I have countless masters, and any one of them could scare off a whole crowd of cultivators!” “Want to compare what's special about us? I'm a transmigrator reborn as the protagonist, and I have a soul-devouring blade containing a System that can evolve!” “What, you still don't know my name? Then perk up your ears and listen. My full name is...Lu...Jun...yang!”