The King's Enchanting - Chapter 24 - Chaos 5

The youthful Qin Ye was born almost a century ago, but thanks to immortality granted to him by the ‘fungus of aeons’ he can pass for a high schooler.

“You must take her place... Just tonight!”****Aria Thorne is an Omega—lowest in the pack and lowest in her own home. Abused by her mother, hated by her twin sister Celeste, and treated like nothing more than a burden, Aria’s life has been nothing but pain and survival. But everything changes the day the Alpha’s royal guard arrives with a scroll in hand and a single, shocking message: the new Luna must come from Aria’s family… and she must be a virgin.Celeste can’t qualify. Aria does. But instead of celebrating her fate, Aria is forced to impersonate her sister in a cruel scheme—just to save her own skin and earn a sliver of love from the mother who blames her for the death of an unborn child. Dressed in her sister’s skin, Aria is sent to marry a powerful Alpha she’s never met. But what happens when the Alpha senses something’s off... and ends up claiming the wrong Luna?What starts as a lie soon sparks something deeper. A connection. A bond. A war.Can Aria survive in a world built to break her? Will the Alpha protect her once the truth comes out—or destroy her like everyone else ever has?

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

After the nuclear warfare, massacres started to spread throughout the entire world. The order between humans completely collapses, and the strong eats while the weak gets eaten becomes the #1 rule.