MTL - Cultural Invasion In Different World (Cultural Invasion into Isekai) - ~ What happened to the ninth fifty-seventh? Kill a few?

“It was a book.It was a scripture.”Its cover was made of the skin of those who hold a grudge against humans.Its words were written with the blood of those who hold a grudge against heaven.Its weave was created from the sinews of those who hold a grudge against earth.The ancient demonic object, restraining darkness shaking heaven scripture (制暗震天經).Yeon Sang-hyeon, who signed a contract with the restraining darkness shaking heaven scripture at the last moment of his days, is now rewriting his own destiny.The peerless genius met the ancient demonic object!

I became an extra who confessed to the main character in a female-oriented romance novel but was rejected – an embarrassing history. However, I tried to brush it off as no big deal, until… “…Didn’t you say you liked me?” After you rejected me, why are you now clinging to me…?

One god, one faith, one world, one mage… I am the only mage in the world.

- Description from Ptwxz (translated)

After being hit by a flower pot, Yu Wan woke up as a poor village girl with an unconscious and fragile mother and a little brother.

She was lost as she did not know this unknown ancient world. But she had to pull herself together, because her mother is still unconscious and her brother was starving.

So she plowed and sowed until she had a large piece of fertile land, rising to the peak of success ever since.

Just as life was getting comfortable, a man, widely feared and rumored to be a living Satan, forced his way through her door, declaring he would marry her!

Although she adored beautiful men, it was rumored that this prince…

“Your Grace, we don’t know each other well!” She said seriously.

“Heh!” The prince smiled meaningfully before grabbing three little toddlers with chubby cheeks from behind of him. “Greet your mother.”

Yu Wan was flabbergasted…