Katahane no Riku - Chapter 58.The man that was the origin of all this

Bai Aoxue, the best mercenary in the 21st century, is accidentally sent back to the Chengxi Dynasty in Great Continent due to an explosion in her mission, and trapped in the first daughter of Prime Minister. After her rebirth, she is set up by her father to marry the 5th prince Jun Yeyan who wears a mask all day long.
In the face of bloodthirsty enemies, discord between brothers, collusion among courtiers and invasion of enemy state, can Bai and Jun resolve the crises? What will happen to their political marriage? How will the fierce battle for the throne end?
With many twists and turns, the book brings you to experience palace revolution, love and hatred thousands of years ago.

- Description from Novelupdates

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

Chu Nan was just an ordinary student, but because of an accident, he obtained the data collection, analysis and processing ability equivalent to the most advanced optical brain.

The cultivator blessed with good fortunes but known to lead a slothful life was reborn again as Chloe Jones. Upon birth, she was shunned for being born a girl and abandoned by her family. What a pitiful life! Fortunately, she was taken in by a poor family in the village.She thought she would stop leading an idle life in this life, but that was until her senior brothers from her previous life showed up. Among her senior brothers, one was the king of the law industry and another was the wealthy president of an international company. One more turned out to be a doctor who was said to have brought people back from the brink of death and the last was a famous celebrity.Originally, Chloe planned to live a comfortable life with her senior brothers’ help. That was until an unlucky b*stard appeared. Whenever the unlucky b*st ard left Chloe's side, he would develop a bad migraine and fever. It was almost as if the God of Misfortune had possessed him.Someone once commented that he and Chloe were a match made in heaven. However, her senior brothers retorted, “Begone! Don’t trust this wolf in sheep’s clothing! He's been coveting you since your previous life!”