The Godsfall Chronicles - Book 7, Chapter 39 - The Truth

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

John Transmigrate to a cultivation world in a perilous situation as a war prisoner.But fortunately he also got a system that lets him upgrade everything if he has enough patience.

[Post-apocalyptic + No romantic pairings + Overpowered system + Management + Please read the bottom of the synopsis + Initially low-priced, enter at your own discretion]Gu Wanyin never imagined that not only would she transmigrate, but she’d end up in a post-apocalyptic world! Opening her eyes to find herself surrounded by zombies with only two pitifully thin adorable children by her side, Gu Wanyin thought: This is the end of me!System: Impossible, absolutely impossible!After binding to the most powerful hotel system in the post-apocalyptic world, Gu Wanyin embarked on a delightful journey of raising children and managing a hotel. As the hotel’s guests increased, so did her rewards! But could someone explain to her why a hotel that unlocked noodle shops, hot pot restaurants, and buffets was understandable, but why did it also have KTV, movie theaters, libraries, amusement parks, hot springs, schools, and hospitals? And even a zombie-killing simulation training camp? Wait, there’s even more…It seems she’s destined to transform this hotel into the only paradise in the post-apocalyptic world!

Huang Dan’s pain nerve is innately different from the ordinary people. A little tore in his skin can cause him to sweat all over his body painfully to the point of him unable to make a word out.

Somehow, he began to cross world, following Mr. System to do the tasks…

In the first world, Huang Dan realizes what it means to die painfully and to live to die again.

TL’s summary:
MC suddenly transmigrated and is bind to a system, requiring him to solve mysteries. Born with a higher degree of pain sensitivity, he met different people in the different worlds and learns what kind of emotion smiling is.

- Description from Novelupdates