Isekai Maou to Shoukan Shoujo Dorei Majutsu - Volume 7 Chapter 2 part1

A powerless woman’s worst nightmare is marrying someone against her will. When those who are supposed to protect her betray her in the vilest of ways, Leonor is forced to marry a Duke known for his cold nature and repulsive appearance. After a miserable childhood, it shouldn’t have been a surprise to her that her future was never truly in her hands in the first place.Duke Desmond de Montclair was nobody before the war. He garnered the King’s favor by doing the impossible in battle. Unfortunately, any achievement is eclipsed by his appearance and unbearable personality. In a kingdom that idolizes beauty, there is no room for someone like him.At first, Leonor finds life with the Duke to be what she’s used to - walking on eggshells and never speaking what’s truly in her heart. Eventually, things slowly start to change as the Duke learns about the horrors she faced while living with her family. His power becomes the key to her revenge.However, in a moment where she feels cornered, Leonor confesses to the Duke that she’s in love with someone else. The progress she has made with the Duke comes crashing down around her.Will her magic abilities be enough to convince the Duke not to throw her out? If she can make herself useful to him, perhaps she can gain his sympathy somehow…

Rimu Dynasty, Kingdom of chaos. Demons were rampant, and it was difficult for people to live.

Gu Qing’an had not yet had the opportunity to appreciate his beauty upon transmigrating in this world, as he had to face the demon who targeted and devoured humans.

Fortunately, she had a system.

“I, Gu Qingan, have never been weaker than others. System, add it to me.”

……

Many years later, Gu Qing’an, standing on the frozen void, looked at the newly discovered strange world under her feet without any expression.

“Compared to human beings, alien existence is a demon,” she thought to herself.

“Then, are all creatures in this entire world considered demons?”

- Description from Novelupdates

I transmigrated into a novel and became the villainess, Serina who comes from the noble Ducal Melford family.

As a well-to-do character, I tried to mind my own business, but the story had other ideas. A self-proclaimed mother brought back a boy – the duke’s heir and a genius wizard – intent on brainwashing and blackening him.

The contents of brainwashing are two things:

1. Obey our family.

2. And fall in love with Serina.

Thanks to that, the brainwashed twisted yandere is obsessed with me…

I can’t do this. I have to undo the twisted character’s brainwashing!

By the way, what’s this situation?

“Now that the brainwashing is gone, I’ll do as I please. So Serina, please, let’s do our best.”

I’ve solved his brainwashing… but why does he seem even crazier than before—

Did I make a mistake?

Su Ran, a music prodigy, woke up transmigrated into a book.

At that point in time, the main story arc in the book had already been completed. As a villainess female supporting character, not only did she need to take over the original owner’s pitiful life in poverty, she also gained an instant son right at his rebellious period.

Ten or so more years from then, the son would turn into a twisted, evil villain. He would appear in one of the extra chapters to pick on the male and female lead’s children.

***

Su Ran: Son, you shouldn’t be too outstanding.
Su Han: Why not?
Su Ran: ’cause you will be killed.

Su Ran: Son, would you like to learn music from me and become a zen, little fairy boy who only needs to drink dew.
Su Han: No, I want to go into business so I can support you.

- Description from Novelupdates