Special Forces: From the very beginning, I can upgrade the entry - Chapter 1 - The World of Special One and the Entry Upgrade System

He rose from abjection and achieved eternity in glory.
He embraced the prettiest beauties and killed the strongest opponents.
He was able to shift the clouds into rain and cover the sky with one hand.
He could overrun the entire world and go anywhere as he pleased.
He pacified wars and held the world in awe.
He was matchless in the world.
However, his hair turned white overnight for his beloved woman and he was on the verge of death.
He was surrounded by enemies who were trying to take his life.
He struggled his way to become mighty and fought for everything he cherished.
For this age, he was the only king of the Dark World.
His name was a byword for might.
As a man living in the world, his only ideal was to pursue brilliance.

- Description from Novelupdates

The worst and strongest villain.I became the narrow-eyed character Arsene Adel.“Revenge.”It sounded good.At least to the original owner of the body.But from my point of view, the goal is not revenge, but survival.I didn’t have the confidence to survive among humans, soㅡI went to the Demon Realm.Where I was headed,A school for demons that is said to be attended by the children of prestigious families in the demon world,……It was a school that terrorized the human world.

After the judgment, the ire of God was revealed with the words: “Be cast unto eternal damnation!” And so it was that humans and jinns alike found themselves scattered across the Nine Circles of Hell, left to burn and suffer for eternity. Until after an untold number of eternities, an angelic voice called out, announcing God's decree: “One soul shall earn the chance to return to grace.” Humans and jinns found a shimmering screen appear before their eyes, tallying their sins and something called 'Fragments of Divinity'. “Cleanse away your sins,” said the voice. “Do what must be done!”Now, a human known as Wretched Nameless One—the only human found in the Ninth Circle—sets out on a journey to claim his spot in Heaven, tasked with fighting hellish monsters and devilish hell-dwellers competing to return to grace. Will he escape eternal torment and rise to grace or return to the everlasting cleansing fire once more?

A Di [legitimate-born] daughter of a noble house turns into an abandoned daughter. No father to dote on her, no mother to love her, no problem. She uses one silver needle to save a dying man. What’s so unusual about a medical injection? She roams all over the world with a scalpel in her hand. Cutting throats, cutting open abdomens, cutting open skulls to mend bones. With amazing medical skills and ethics, she gathers a flock of officials, obtains the will of heavens, gains public favor, and receives Taizi’s [Crown Prince] doting. In the midst of a powerful momentum, her cheap father comes to reunite. She coldly refuses to go home or acknowledge ancestors.

“I was abandoned by you over and over again. Now you want to use familial affection to coax me back. You don’t want to recognize this daughter. My heart is cold, I want to leave. Beat it, father!”

- Description from Novelupdates