MTL - Mountains and Seas For All People: Starting From a Thatched Hut - Chapter 561 Brain problem

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

10 years ago, after “the Gate” that connected the real world with the monster world opened, some of the ordinary, everyday people received the power to hunt monsters within the Gate. They are known as “Hunters”. However, not all Hunters are powerful. My name is Sung Jin-Woo, an E-rank Hunter. I’m someone who has to risk his life in the lowliest of dungeons, the “World’s Weakest”. Having no skills whatsoever to display, I barely earned the required money by fighting in low-leveled dungeons… at least until I found a hidden dungeon with the hardest difficulty within the D-rank dungeons! In the end, as I was accepting death, I suddenly received a strange power, a quest log that only I could see, a secret to leveling up that only I know about! If I trained in accordance with my quests and hunted monsters, my level would rise. Changing from the weakest Hunter to the strongest S-rank Hunter!

Michael, an ordinary and average guy, suddenly finds himself in a dangerous fantasy cultivation world after being randomly chosen in a multiversal lottery. Armed with a wish system that may taunt him some times, grants him one wish every week, Michael has to survive in this harsh world of cultivators, monsters, and mysterious powers. However, the system has strict rules—he can’t wish for direct power.However average Michael was, he loved his family on Earth and that's why his main goal is to return to Earth. To do that, he must climb to the highest realm of cultivation, all while avoiding greedy enemies and dangerous beasts. With each wish, Michael gets closer to his goal, but the challenges only grow tougher as the world around him becomes more dangerous.

Zhou Yu was ordered to enter the city and get married. Even though my wife didn't like me, my father-in-law disapproved of me, my colleagues always wanted to bully me, and the bad guys were always looking to take me down, but touch me, that's fine, touch my wife, that's not. Whoever lays a hand on her, I'll take down. I fought until the whole world bowed down, then returned to the village with my wife in glory!