I Am Invincible in the Fantasy World of the Apocalypse

In a world where corpse cultivators spread, Chen Yuan, a handyman disciple, was killed by a traitor and accidentally awakened the all-things extraction system, which can extract the cultivation, skills, spiritual power, etc. of any dead object. "So, as long as I kill him, these decades of cultivation will be mine?" With the blessing of the system, Chen Yuan fights monsters and upgrades all the way, kills everyone, makes important friends, and goes through many tests. Little does he know that behind all the tests , all a huge conspiracy weaved against him...