MTL - My Star Teacher - v2 Chapter 907 [Yiyi's Dad 1] (From here on postscript)

The daughter of Prime Minister is a nympho?
The brutish Prince is her husband?
The stroppy Princess wants to kick her husband off the marriage sedan?!
“Shit! I want a divorce!”
“Why?!”
“You can’t satisfy me in bed!”
The next day, Prince Chen becomes the laughingstock of the whole Kingdom of Dayue.
How Hua Yueling, the Stroppy Princess with a soul from 21st century, will create her legendary story in this ancient world?

Follow Chen Ming as he accepts disciples, establishes a sect, and fights his way in a world that deems him a cannon fodder.
He goes against any common sense using his wits and novel knowhow to finish missions and arm himself against his cruel fate.

- Description from Novelupdates

Arthur, a young man in his twenties, suddenly finds himself inside the world of the novel “The Rise of the Sovereign Sword,” a famous story he had been reading in his previous life. He doesn’t understand how he ended up in this world, but he soon discovers that he has been installed as the ruler of a poor and small barony due to a serious misunderstanding—everyone believed he was the illegitimate son of the Duke, a man notorious for his terrible reputation and corrupt deeds.Afraid of having his true identity as an impostor exposed, Arthur finds himself in a difficult predicament.As he tries to find a solution to his dilemma, he faces daily problems stemming from this world’s extreme backwardness in terms of economy, technology, and governance. However, instead of surrendering, he decides to use the knowledge from the world he came from to change this regressive situation.Arthur attempts to spread civilization and progress in his society, fighting against outdated traditions and establishing new concepts that will improve and advance people’s lives.