MTL - Naruto’s Strongest Force - Chapter 168

Science and Technology Library: The supreme state of science is theology; an accidental rescue, let Chen Mo get a technology library that collects endless technology, the story begins…

- Description from xbiquge translation

The apocalypse has descended. People are trapped indoors, driven to despair by severe supply shortages.Yet, Lin Lang has awakened the 10000x Rebate System. Any supplies consumed by his women will be returned to him ten-thousand-fold!!![Shen Chuchu consumed one piece of beef jerky. Refunded: 10,000 pieces][Ning Shuangyu consumed one Superpower Fruit. Refunded: 10,000 fruits]……An endless stream of refunded supplies! Physical enhancements that break past human limits!Right in the apocalypse, Lin Lang is finally living the blissful life of his dreams.If you were to ask him if he has any other wishes—“Actually, I have room to take in a few more goddesses.”

In the tenth year after the new era, the world finally came to an end. Zhang Mu truefully waited for his death, but unexpectedly found that he had returned to ten years ago. With his memory about the future, he swore that he would change the calamitous history, saving the earth from being destroyed! Walking dead, zergs, evolvers, and various mutated animals… nothing can stop him! The first step is to retrieve his identity as an era merchant , then find all the treasures he can remember to enhance himself!

- Description from Novelupdates

Years ago, Earth was indoctrinated into the “System.”Earth was not the only place with the System, however. With the System came the other races, Invaders. The Invaders had one goal, to obtain ownership of this new habitable planet. This created a bloodbath, and for years the war raged.This didn't really have much to do with Derek. Derek was kind of a loner. Yeah, he enjoyed the occasional chat or drink with others, but he never stayed in one place too long or really got to know anybody new.Derek did happen to be rather strong. After the years of fighting monster and Invaders alone, he had become quite adept at surviving. One thing that helped keep him alive was his refusal to get involved with others. He rarely cooperated with teams.One day, Derek broke his rules and decided to lend some help, as the mission didn't seem too hard. He should have stuck to being alone.