MTL - Comprehensive Manga: Starting From Teaching Hinata’s Black Coffin, It Will Be Returned 10,000 Times - Chapter 273

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

Fang Heng was transmigrated to a parallel world and his soul was forced into the body of a man who had just committed suicide.Huh? What? Every human here was being forced to join a game? Those who refused would be killed?Wait? This suicide dude was a pro gamer?He had the highest S-rank talent sill, the Zombie Clone?Damn! The S-rank skill evolved! My zombie clones could auto hunt![Your zombie army has crafted Wooden Axe x720 when you were offline. You have received 1921 experience points for the Basic Crafting skill.][Your zombie army has chopped down 27,821 trees and gathered 128,973 pieces of wood while you were offline. You have received 2,171,921 experience points for the Basic Wood Chopping skill.]Just as the rest of the players were struggling to survive in the zombie apocalyptic game, Fang Heng's zombie clones were starting to clear every resource out of the forest.Hm... What an interesting game!

Legend says, that there is a great demon, who is the human kind’s public enemy. He is the galaxy federations’ nightmare as he wanted to conquer the whole universe. On the first day, he completely took out the human fleet, plunging them into disorder. On the second day, he declared that he will wipe out the whole federation. On the third day, he declared——that the hero who shot him in their previous battle must marry him, or else, he will destroy everything.

The galaxy federation president and the council members had a long meeting after that. They decided to dispatch a soldier, Wu Xing Yun, and marries him off to the arrogant demon. Wu Xing Yun was once a hero who fought for the nebula, and henceforth, he was tasked—— for the sake human race and the universe’s peace, to eliminate mistresses, settle his matters with the mother-in-law, and fix the man’s crooked ways.

Wu Xing Yun was very perplexed when he asked his commanding officer: “Sir, why did it have to be this way?”

Commanding Officer: “Soldier, bear in mind, that this mission of yours, is for the sake of the universe and mankind’s happiness. You must hold on to your husband, and fight other mistresses! Do you have the confidence to accomplish this task?”

Wu Xing Yun, stood straight, saluted, and instinctively replied: “Sir, yes sir! I will accomplish this task!”

- Description from Novelupdates

What if life could be repeated?

But he became the clan uncle who was once called a lunatic?

Alas, wearing open-crotch pants in front of me, crawling on the ground, is it my two-year-old self?

I originally wanted to give my former self more New Year’s money, but I never thought that I would go from a braised pork stall to a food giant, from a small factory to an industrial empire.

- Description from novelbuddy