Omae wo Onii-chan ni Shite Yarouka!? - Volume 3, 8th of May, Wednesday.

Medieval times, warring knights, dragons, demons, gods, pirates, behemoths...Barbaric, ignorant, backward, numb, starvation widespread, people unable to make a living...Damn it! Punch to explode this era!!Reclaiming wilderness, farming, bridge building, road paving, coal mining, excavating minerals!Leveling up, recruiting apostles, forging an army!Barrage troops! Pushing horizontally!Quack! My steel torrent is invincible in this world!!Roman: “I am your destiny! Kneel before me!”So, you were supposed to farm, but somehow you ended up establishing a vast empire and becoming the emperor?

"I hope my wife liked the arrangements... for the wedding night."

In the Sky Sword Continent there are thousands of sects and strong cultivators as common as trees. In order to prevent his older sister from being forcefully married off, Lu Xuan had no choice to but to unceasingly cultivate and enter a sect to ask for a favor. By chance, a sword-shaped crystal of mysterious origins entered into Lu Xuan’s body, containing countless top-class martial skills, powerful martial arts, and everything you could wish for! A martial legend starts here…

- Description from Novelupdates

[He is the villain in the house fighting essay, the roadblock in the spoiled essay, and the negative teaching material in the imperial examination essay]
His father joined the army and was named a marquis, but Mrs. Hou is not his mother, what should I do?
The stepmother seems to be transmigrating, gentle and virtuous, but in fact she wants to nurture him, what should I do?
The grandmother is snobby and wants him to give up the position of the eldest son. What should I do?
When preparing for the imperial examination, the relatives make trouble and want him to fail the examination. What should I do?
——The above answers are all in the “Complete Explanation of the Reverse Textbooks of the Imperial Examination”. This book covers family disputes, difficulties in the imperial examination, troubles in the officialdom, and the rules of power and ministers. I have a book in hand, I have the scientific test, and the teaching will not give a full refund!

Later, when the Xungui family taught their children to study, they would always take Xiao Jingduo as an example: “Study well, don’t go astray. Don’t imitate him, you won’t disgrace the words of the sages.”
* * * * *
People in the world have mixed evaluations of Xiao Jingduo, and what he is most criticized for is that he has no literati spirit, and is willing to be the sword of the regent princess and work for the princess.
Until later, Xiao Jingduo married the princess regent.
Courtier: …………No wonder!

This article is also known as “The Revenge of the Original Spouse”

- Description from novelbuddy