Undead Lord Jiang Chen awakens the "Fourth Calamity" system, summoning Earth players to transform into an undead skeleton army. Facing the blockade of the million-strong coalition of the Holy See, Jiang Chen plays outside the book: using "zero-dollar purchase" tactics to sack enemy camps, using cola and rock music to corrupt the saintess and alien races, turning war into a carnival. When higher dimensions try to smash this broken world, Jiang Chen brutally cracks it, seizes authority, leads the player army to slaughter gods and prove the Dao, and finally declares world independence, opening the "closed beta" era facing the entire universe.