The Little Prince in the Ossuary - Chapter 108 : Journal, page 130, Fort Roberts

He underwent profound transformations after 100 reincarnations. Bahamut, once possibly a more innocent or vulnerable entity, emerges from his experiences as a sadistic dominator, embodying the essence of a beast on literal, figurative, and spiritual levels.His priorities shift drastically, abandoning concerns as he becomes consumed by his love for challenges, blood, horror, and death. Bahamut thrives in this brutal world, embracing his identity as the ultimate BEAST.This journey is marked by his relentless pursuit of darkness and domination, making him a force to be reckoned with.Bahamut travels around the world, the universe, explores various mythologies, gains more power, and for his main purpose…It becomes something he would do when he feels like it.[Additional Tags: No Yuri, No NTR, Harem (50-50: Massive or Small), OP, Intense, Anti-Hero Anti-Villain]

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.

Le Xia traveled to the Marvel world. He was born ordinary, but after encountering a dilapidated bronze box, his life was destined to be extraordinary.

“Put on the holy clothes and protect the love and justice on the earth!”

The moment he touched the box, these words were imprinted into his soul.

Whether it’s evil spirits in the dark, covets in the starry sky, or “gods” who regard all living beings as playthings, all evils that try to disturb the peace of this land will face the justice of the saints.

When the golden holy clothes reflected the dazzling starlight and the white cloak fluttered without wind, the legend of the Saint Seiya began to spread throughout the Marvel universe.

- Description from novelbuddy

The ascension pill tribulation descended, and when Zhu Fei woke up, he found himself reborn into the body of a wasteful illegitimate son from a prominent family.Facing the bullying and provocation of others, will he still remain timid and weak like before?Faced with his frailty, what changes will he make?See how a useless person counters all odds, and step by step, with an arrogant and domineering posture, ultimately reaches the pinnacle!