Kamigoroshi no Eiyuu to Nanatsu no Seiyaku - Chapter 0

Here is a story about an ordinary hard worker struggling hard in the troubled times of the Three Kingdoms and working hard to farm.

- Description from novelbuddy

Son of a bitch! I just finished this godawful fantasy novel, and now I'm knee-deep in it – as David, the disgraced son of the Solarian Empire's top general! Talk about some twisted cosmic joke. But hold on a damn minute... maybe this isn't all bad. Armed with the knowledge of that trashy plot, I can become the ultimate shadow player, an overlord perhaps. Screw the damsel-in-distress harem too – it's time to pull the strings and become the real power behind the throne. This isekai might be a steaming pile, but I'm rewriting the ending with a little more... Debauchery (wink wink).

Harem Dynast is the story of a princess set up in a political marriage with King Lorent, a great conqueror who is often mentioned in the Harem novels.

The mysterious master returned to the village, skilled in medicine and Martial Arts, using extraordinary methods to lead the villagers on a path to wealth.