Reincarnated as the Demon King's Son - Chapter 826 - World Destroyer

He lived from BC to the Middle Ages, from the Renaissance to the Industrial Revolution, and from Cyberpunk to the Interstellar Age. He has been a king and a prophet, a knight and a nobleman, a versatile artist, a genius inventor…
This is a four-thousand-year human epic——
“To us four thousand years from now:
“Is the world at peace? Is famine extinct? Can people touch the stars? How long is the human lifespan? How far is the boundary of the earth? Human…do you remember us?”
——Excavated from Earth Age Tenth Century BC, Solomon Prayer Book.

- Description from novelbuddy

Abigail’s only crime in life was being born as the mute daughter of the deceptive maid, who drugged her boss and got pregnant for him… or so she thought.All her life she had to serve her stepsister, Genevieve, attending to her every whim. While Genevieve used every opportunity she got to make Abigail’s life hell, even to the point of seducing Abigail’s boyfriend.On the night she resumes college, Abigail crosses path with Jamal Jonas, a heartbroken elusive billionaire, who leaves behind a stuffed animal that belonged to his first love. Abigail keeps the stuffed animal, which stirs her long lost memories.Five years later, Jamal shows up again, but this time as Genevieve's new live-in driver.Working for Genevieve quickly places him near the supposedly mute and intelligent Abigail who he doesn’t immediately recognize, and soon enough, Jamal finds himself pulled in by Abigail's charms.Jamal quickly realizes there is more to her than meets the eye, and there might be more connecting Abigail to his first love than Genevieve.

In the Year 350 of the Anping Dynasty, humans were faced with a huge crisis. Earth was invaded by monsters from another dimension. Fortunately, Su Yu awoke a power where he possessed a scripture that allowed him to contain everything in existence. With that power, he was able to face the coming apocalypse.

“Pretend to be my lover and join the social circle.”

Selena, the top star that had the entire world’s attention, was suddenly warped to Northern Duke’s land during an accident while filming. Kalcion, the Northern Duke that saved her from the infernal beasts, offers Selena a chance to go back home in return for collecting information in various social circles by pretending to be his lover. Selena quickly accepts Kalcion’s offer, but…

“Why in the world can’t you do this!?”
“Don’t you think that the answer to that should be obvious to you, the actress, not to me, the duke?”

There was a critical problem. The Northern Duke’s acting skills are horrible!

“…Let’s change the plan. I’ll seduce you instead.”

And thus the contractual relationship between the two started. Will Kalcion’s acting skill improve first, or will he start to have true feelings for Selena instead?