Marriage contract: Genius baby's belly daddy - Chapter 201

Prince Kaelen Verath is a royal disgrace—a “good-for-nothing” heir who drowns his shame in wine and brothels.But when traitors slaughter his family and reduce his kingdom to ashes, Kaelen’s desperate pact with the Voidwell, an ancient power that consumes souls, grants him unimaginable strength… and hollows him into a monster.Death offers no escape.He becomes a regressed prince who once watched his kingdom and family burn, only to fail in avenging them without losing himself.Now given a second chance, he refuses to settle for mere survival or revenge—this time, he wants everything.Every empire, every kingdom… all under his control.But with every soul he consumes and every ounce of power he gains, a piece of his humanity is lost.How will he balance power and control?Can he become a supreme ruler and still remain himself?What is the cost of Absolute Sovereignty?————Send Powerstones for a guaranteed mass release!

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.

Wang Bo was fed up with his job being a programmer, especially because of all of the nights he was working overtime without pay. His boss had given him a mysterious game to beta test in his free time, which had granted him possession of unclaimed territory in New Zealand with which to improve to his desires. After a certain event in his company, he ended up quitting his job. His lack of goals and curiosity eventually led him to buy a ticket to New Zealand, in order to see if the unclaimed territory given to him in the game was actually real. Watch, as he develops this beautiful, fertile stretch of land into prosperity, by building villages, farms, schools, hospitals and more.

- Description from Novelupdates

Mikail Fremawan, someone who has always been followed by bad luck since he was a child, and the peak was when both of his parents died simultaneously before his own eyes.But the sudden appearance of the System changes everything, from wealth, power, glory, and... revenge; Mikail begins his steps to achieve all of that one by one.Witness his story of turning his misfortune into incredible good fortune.Mikail: There might be something wrong with my System, Isn't it?