MTL - Seal Cultivation for Self-Improvement - ~ The first batch of younger brothers?

[Of all the music I’ve ever heard, it’s your voice that calms my soul. He whispered]***Tang Xue Mei was the legitimate heir of the company, but her best friend caused her to lose her sight and her status. She was tortured every day until she ended her life. To her surprise, she was reborn three years before her death!Now, she isn't going to waste her second chance. With a new lease on life and the determination to change her fate, Xue Mei finds herself entangled with a man suffering from insomnia, who offers her power in exchange for her help in curing his sleep disorder.Feng Shihan, CEO of AG corporation, had everything from looks, fame and wealth, but he could never get a good night's sleep due to his rare severe sleeping disorder. Until he met Tang Xue Mei, he never thought he could get a decent sleep.But then he finds out that as long as she's on the bed with him, he could sleep as well as he liked. She was his miracle sleeping pill.Soon he finds out she’s difficult to get, so he proposes a form of alliance to her.“Miss Tang…if you agree to be with me, I’ll give you all the power you need…”In a desperate attempt to gain power and get back at those who had hurt her, she agreed to his request.

Eons have passed since the prophesied godslayer met his demise. Yet, in a world reborn, whispers stir of his return, of a new man born from the remnants of an ancient prophecy.Kallen, destined to master the delicate balance between chaos and order, light and darkness, emerges to defy the very fabric of fate.Existence is a tapestry, one whole, connected, and indivisible. It is woven by the fabric of fate, spun with the strings of karma, and stitched with the threads of causality.Yet, within this unity lies individuality, and this individuality is the essence of existence. The manifestation of essence is Will.But what is a sparked Will against one akin to a raging inferno? What is a child before a mammoth? The conviction of a mortal before the boundless Will of cosmic beings?The answer is defiance!.A defiant Will, is what Kallen needs to liberate himself from the suppression every mortal endures from apex lifeforms. To live his life free, unhinged and on his own terms.But it takes a bit of crazy to be brave, and Insanity to be defiant.This is the story of a mortal breaking limits to achieve Apexification, to walk with his head held high and free in every corner of the universe.It is the irony of a slave who holds the reins, even as their chains bite deep. It is the cry of a heart bound in servitude, yet refusing to surrender its essence.

I am the most talented guardian of this era!

But no one knows, I still have a second template, the knife cuts the flesh, the intention cuts the soul!

You may have seen the meatless juggernaut, but you have never seen a full-time meat shield with an explosive attack!

- Description from novelbuddy

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.