The Black Book: Seven Deadly Sins - Chapter 127: Flashback

When an S-class elite assassin-raised captain of a special ops suicide squad comes home from a high-stakes Africa mission, he finds himself offered something that could potentially set him up for life- a curious assignment that he could use to finally exit his days of war and slaughter.

In the tenth year after the new era, the world finally came to an end. Zhang Mu truefully waited for his death, but unexpectedly found that he had returned to ten years ago. With his memory about the future, he swore that he would change the calamitous history, saving the earth from being destroyed! Walking dead, zergs, evolvers, and various mutated animals… nothing can stop him! The first step is to retrieve his identity as an era merchant , then find all the treasures he can remember to enhance himself!

- Description from Novelupdates

Choi Hyun-seok, a heavyweight champion of the biggest mixed martial arts league on Earth and the one who was called the strongest had died.Afterwards, he was granted new life as a hero in another world.‘Wealth! Honor! Endless beauties at your fingertips!’With thoughts of such a dazzling future, the first thing that he saw when he came to this new world was a towering ox monster.The monster, who was the commander of the demon army, asked.“Hero? You’re saying you’re the hero?”“Uh…I think…?”And so, that was the start of hell.

Villain System: Let the Young and Naïve Duchess of the Cang Court Principality, Sylvia, Experience the Betrayal of Her Loved Ones, and Achieve Transformation and RebirthTransmigrating into a Western fantasy world centered around beast taming, Xia Ya stared at the beginner mission in front of him, lost in thought.Sylvia—the legendary “Silver Witch of Cang” recorded in history—had already ascended to legend status five hundred years ago. After establishing the White Chalk Tower, she vanished without a trace, never to be seen again. And as for the Cang Court Principality? It had long since been destroyed. How was he supposed to complete this f***ing mission?This system was five hundred years late!Yet, the mission reward was simply too tempting. After much deliberation, Xia Ya made a decision that would make his ancestors roll in their graves—[To Deceive History Itself]The capital was gone? Fine. Then I’ll just write my name into the duke’s family records and become the older brother of the duchess. No objections, right?Modify relics and ancient texts? Sure. Let’s say I was manipulated by cultists, falsely accused Sylvia of an imaginary crime, and personally exiled her. Then, later, I came to my senses and perished alongside the mastermind behind it all. That sounds reasonable, right?[The One Forgotten by Time][The Heartless Tyrant][The King Who Turned His Back on the World]One hidden truth after another began to resurface.[The Silver Witch’s Diary]Waking from my self-imposed slumber, my memories are in tatters—except for one, still deeply etched into my soul: the pain of betrayal.Recent archaeological discoveries have revealed the truth…It turns out that the principality had already been corrupted by a cult. Not long after my exile, an evil god descended upon the royal capital, annihilating all life.So… my brother did all of that… to save me?