MTL - Genius Sword Immortal - Chapter 80 Jianqi cold light

Seven years ago, Shen Qianshu is impregnated with Ye Ling’s child in an accident.
Seven years later, the little boy becomes famous and is thought of as the nation’s son.

When he suddenly sees Ye Ling appear, he greets, “Hello, Daddy?”
Ye Ling watches as the little prince roars, “Where’s my princess?”
Just as Shen Qianshu is preparing to run with her son, she gets pushed down by Ye Ling.

“You can leave if you want, but leave me a princess first. Let’s have another baby!”

- Description from Novelupdates

Kai's story begins in a cold holding cell - with no memories and nothing to live for. Just pain and rage. Broken, like the world around him. That’s when everything went black...The next thing he knew, he awoke as a mutant!Seven years earlier, in 2020, the Z Virus outbreak shattered the world. Cities fell. Beasts and monsters ravaged the streets. And from the chaos, mutants emerged - humans twisted by the virus into something more. A gift and a curse.But Kai didn’t mutate from the virus.He was made.The first and only stable artificial mutant, created by the twisted genius Dr Nyx - a man who failed to replicate him and spiralled into obsession.Tortured. Experimented on. Pushed to the edge. Kai finally escaped after his awakening, but the scars remained. And so did the power.Now free, Kai is cold, calculating, and merciless. His ability to manipulate blood - his own or others' - is terrifying. But to him, it’s just a tool. One he’ll wield without hesitation.In a ruined world ruled by the Association, mutants, and the strong, Kai has no interest in saving it. He wants answers about his past, the truth behind his mutation, and revenge on the man who tormented him.Only one thing is certain: He who bleeds last writes the story... even if it’s in crimson ink on the bones of the fallen.This is the story of the Bloodweaver!Disclaimer: This is a work of fiction. Any similarities to real events, locations, or people are purely coincidental and not intended to portray anything.

Xue Xi is forced to fall in love at first sight with this dangerous man on their first meeting. With death being the only other option, she makes the first move:

Damien Julian is an 18-year-old loser, who has been bullied and mistreated his entire life, at home, he has to deal with his abusive father, and at school, he is constantly been bullied by delinquents, and to make things worse he is always looked down upon by his peers, till one day a mysterious screen appear before him as it said.

[The world has seen the lingering evil in your heart]

[Would you like to be one of the nine demon kings of this world]

[If so what are you willing to sacrifice?]

In the heat of the moment, Damien made a deal with the world, that he would give up everything he owns, or do anything it wants, and in exchange, he shall be reborn as a new Demon King, and what the world required from him as payment was.

[In exchange for power, become a slave of the world, and act as an anti-body for all eternity]

At that moment, Damien agreed, but little did Damien know, that becoming a slave to the world meant he has to be its immune system, what that entail is, that anything that threaten the world must be destroyed even if he has to wipe out humanity, to save it, or assassinate historical figures to bring fort balance or even manipulating events that can potentially end the world, to save the world, this is the story of a necessary evil, not the story of a hero who cares for others.