Harry Potter: A Certain Ancient Rune Professor of Hogwarts (TL) - Chapter 69

Romance Carnival 1st Prize. BEWARE THE FURY OF A PATIENT WOMAN. Rosalind Lux died after learning of her husband and sister’s betrayal. And just as she thought she finally found peace, she woke up forty years before her death. With memories from her past life intact, Rosalind vowed revenge. Her plans quickly brought her into the arms of a Duke whose enticing gaze contained mysteries that threatened not just her plans but her heart and body. …. BEWARE THE LOVE OF A CURSED MAN. Punished by the Goddess for his greed, Lucas Benjamen Rothley had been guarding the North for as long as he could remember. For hundreds of years, no woman has ever stirred his heart. That was until the fearsome Rosalind Lux stumbled into his life. Soon, he realized Rosalind wasn’t quite the damsel that she liked everyone to believe. She is hiding a secret so dark it could either end his curse or throw his life amiss.

I have been summoned to a game world, a world of swords and magic. Or at least that's what my friend said.I couldn't care less about that.But apparently, I can create whatever eldritch creatures I want, even the ones from urban legends and creepypastas.So what if the people don't like my babies? Screw them.This is the story of how I accidentally became the last boss of the world.

21st century superstar Jian Nai’s friend encountered a scumbag who cheated money from people. As soon as the other party walked away, his friend became the laughing stock of the entire entertainment circle overnight!

Jian Nai immediately decided to take revenge on behalf of his friend, preparing to make the scumbag pay the price for playing with other’s feelings and then dump him!

Jian Nai : “Baby, I just got off work, and you?”

The other party : “Just finished the battle with the invading army.”

Jian Nai : “Honey, I will cook for you in the kitchen. What do you like to eat?”

The other party : “Nutrition solution.”

“… …”

Getting along for a while, he finally dumped the other party and said he was just playing around. After saying the harsh words, he realised– it’s over, he copied the wrong ID!

Not only did he add the wrong person, the other party was not even a person from Earth at all!

- Description from Novelupdates

I became a side-character who died in anguish because of her good-for-nothing husband.

If I can’t avoid getting married, why don’t I change who I marry instead?

“Excellent, marriage sounds good.”

“Wise choice. Then let’s have a wedding ceremony that isn’t too ceremonious. Following that, I’ll need you to go down to the Fief and behave like the lady of the house until I call for you. Naturally, there won’t be any time to spend in leisure whilst dousing yourself in luxuries.”

“I’m not marrying you, but your father instead.”

“……Pardon?”

“I’m not going to marry you. Do you have a problem with that?”