MTL - High Above - Chapter 12 Goodwill (thanks to the lord of Mufeng Song!)

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

Alvin had planned his future: after leaving the city of Serinthia and obtaining his graduation certificate in technology, he would return to his hometown, stay close to the only girl in his life, and kill a few people from time to time for fun and entertainment.But fate had other plans. On an ordinary day in the Royce Empire—one of the three great empires that ruled this world—the sky split open and a barrage of meteors descended. From that moment, the world changed, and the lands of the empire turned into a battlefield, as monsters appeared and people became hunters.Now, Alvin found himself forced to abandon his former dreams and return to his city before the companion of his life dies.

After being flogged to death for a crime she didn’t commit, Calista received a second chance when a system contracted her. It was simple: complete tasks and she could earn a second chance in life. After completing several of them, the chance to reincarnate in her original world and body was finally granted to her.However, unlike others, she didn’t want revenge against the people who killed her or wanted to unmask what truly transpired back then. All she wanted was to live peacefully and enjoy the bounty benefits which came with the reincarnation.And that was something she found when she met a man she fell in love with in some backward village. Unfortunately, all that was broken when her husband of five years perished at the hands of bandits.Things went downhill when Calista married her second husband, Orson, an amnesiac man whom she scammed into marrying her. But things weren't as simple as they seemed— Orson might be hiding some secrets of his own.Led on a path of revenge that Calista never thought she would be on, she soon realized that Orson might have more to do with her first life and death than he led on. If he knew she was still alive, he might kill her again.That meant that this time, Calista might have to strike first.

A story about a traveler who crossed into a parallel universe, relying on his Proficiency ability to continuously grind experience and become stronger.