MTL - Mommy Stuns The World After Her Divorce - Chapter 19 This... this is too fierce!

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates

You have no memories. You don’t know who you are or why you’re here. But none of that matters.You are one of a thousand chosen, thrown into the Pantheon’s Ordeal, a brutal trial created by the gods. The rules are simple: survive, grow stronger, and uncover the truth about yourself. But this trial is not fair. The challenges will break you. The monsters will hunt you. And the people beside you? They are not your allies, they are your competition.Only ten will make it to the end. The rest will be lost forever. But if you survive, the gods will reward you with power beyond imagination.Now, fight. Endure. Remember who you are.Dune wakes up in a strange, empty place with no memory of who he is or how he got there. All he knows is that he needs to survive.As he faces dangerous creatures, humans, and tough trials, Dune starts to uncover fragments of his past. He meets allies and enemies, each revealing new clues about the mysterious world around him.Driven by a need to remember, Dune pushes through impossible, hoping to reclaim his identity and uncover the truth about world he’s trapped in.

The whole world is subjected to a highly dangerous standardised exam called the Global Examination. Answering questions by putting their lives at stake, they would live if they passed the test. Every month the exam will undergo reformation while, occasionally, it is random.