MTL - Comprehensive Manga: Starting From Teaching Hinata’s Black Coffin, It Will Be Returned 10,000 Times - Chapter 251

After rebirth, Long Xiaoyuan went into raptures because he was in poor health in his previous life. However, he suddenly found that his soul was in the body of a fatuous and self-indulgent emperor.

This fatuous emperor put sycophants in important positions while executed the faithful and the upright!

This merciless emperor married the son of a general and kept torturing him!

How could he be reborn as such a person?

The empress was pretty handsome and smart. Since the former soul of the emperor didn’t cherish such an excellent man, Long Xiaoyuan would love the guy and save himself by the way!

- Description from Novelupdates

As a promise, he went out into the world as an assassin. 3 years later, after becoming the Supreme Assassin, he gave up on everything he had and returned to the ranks of ordinary people. But one day, Kismet, a mystical game created by the National Research and Development had appeared.

Sherlock is a new generation Dungeon Lord whose ambition is to become the greatest Devil King and building up the greatest Dungeon in the Underworld.

The empire encompassed endless twinkling stars, but in this dark and terrifying distant future, there were only endless wars.......Gu Hang became the governor of a wasteland planet, where previous governors had all been executed for failing to deliver the tithe on time.Monsters and Low Energy Storms rampaged, survivor factions schemed against each other, technological regression, low productivity, the resurgence of Evil Gods, Green Skin Orcs taking root and sprouting...“Don't panic just yet, let me check the panel below.”[Military Tokens], [Heroes], [Technology], [Events]...Starting as the planetary governor, he would build fleets that traversed the Star Sea, suppressing all alien forms, heretics, traitors, and demons of chaos!Although I formed battle groups on my own, funded Battle Nuns, diverted the imperial tax, and disregarded deployment orders... I knew I was fiercely loyal!Traitors? This is clearly the Third Empire!