In DC/Young Justice with the Omnitrix/Ultimatrix and a Chat Group - Chapter 23: Developments

She was reborn in the 1970s, when there were no mobile phones or TVs, people lived in poverty and marriages were arranged by families. He, the wealthy and powerful head of the regiment, who governed the local army, helped her join the army so that her family would no longer be bullied and could live a good life. And Suddenly, he proposed marraiage to her...

One day when she was thirteen years old, while chewing bread as a snack, Dalia Pesteros suddenly remembered her past life. This is an impoverished otome game world where the main characters go crazy, and she was born as the sister of the worst villain in the future!

There is no solution at this rate. The family will be exterminated, and I will be thrown away. So, no matter what, I must get out of this family as soon as possible!

‘Now that it’s like this, I need to lower their guard and run away.’

In order to get rid of the relatives who aim for the family and the sly emperor, it’s better to be in good favor with my brother-

“I want to dance with Dalia. What’s the problem?”

“I’m sorry, but my sister is shy.”

“Dalia said I was her favorite!”

Somehow, it’s not only my brother that I tamed, but all the strongest characters in this world are obsessed with me!

”When I tell you to proceed with Plan A, you can’t just ignore it and go with Plan B,” said the king.

”Sure”, she replied; she’ll just go to Plan C then! No biggie.

”If you were told to go eastwards, you can’t just ignore me and go in the opposite way,” the king added on.

”Yes,” she said while nodding. If she can’t go in the opposite way, North and south work fine too.

”You are NOT allowed to have affair with any other men!” the king then emphasized.

”Sure”. She replied. She never has to be the one having affair with the others. Others have it with her.

- Description from Novelupdates

This is a world where humans, demons and mysterious beasts coexist.

Humans cultivate mysterious qi. Demons cultivate corporeal bodies. Mysterious beasts cultivate soul perception.

A legend says that in the middle of an endless rainforest, there are extremely powerful existences; they are called demon kings.

Some demon kings have a tyrannical corporeal body, some are experts in illusions.
Some demon kings are proficient in magic, some can even move mountains.
Some demon kings are able to sense things thousands of miles away.

These demon kings rarely appear in the human world. Even if they emerge in the human world, they would reincarnate in human form; assimilating with mankind while seeking to breakthrough realms…

- Description from Novelupdates