The End of the World: After Humans Shrink, I Will Have a Hundred Times Explosion Rate

An unknown civilization invaded, and the global human population shrank a hundred times overnight. Yang Yan, who desperately protects his girlfriend's family, is suddenly attacked by his brother-in-law because of a supernatural ball. The gentle fiancée who was on the verge of death turned cruel and vicious. It turns out that the brother-in-law is just a rich man in disguise! He was played like a dog! Yang Yan, who was discarded like garbage, accidentally activated the 100-fold explosion rate system. The fiancée's family saves energy one by one, and Yang Yan harvests it one hundred. When his fiancée's family was fighting for a high-level power ball, Yang Yan had so many power balls that he couldn't even fit them in! "Get white energy x1, trigger a hundred times explosion rate, white energy x100. Whether you choose to advance or not, congratulations on getting Green Energy X1. " "Obtain a blue dog-leg knife, trigger a hundred times explosion rate, dog-leg knife X100. Whether you choose to advance or not, congratulations on getting the purple titanium alloy mace knife. " "Acquired the red power of Hundred Snakes, triggering a hundred times explosion rate, red power x100. Whether you choose to advance or not, congratulations on getting the silver superpower Fire Dragon Fentian. " … When Yang Yan stood in front of his fiancee's family again. Everyone was so shocked that they were shaking! Peeling skin, cramping, and breaking bones! Next goal. Then explore and explore the origin of this apocalypse!