Invincible! This person has lived for a billion years - Chapter 14: Could anyone possibly live forever?

There was a time where I was summoned to a different world. I spent more than a year as a Priestess from a different world. I fulfilled my role and decided to return to my original world. Before leaving, I confessed my feelings to my escort knight. And from there I was heartbroken. After returning to the original world for a year and half, I was summoned again. What? Apparently this time, nobody summoned me. I was sent out to a great extent and have a lost love. I cannot face anyone now! No one knows that I was a former Priestess and I can only quickly return to my original world. Even so, it does not seem to work out very well…

Riven's life turns upside down when Elysium's Multiverse absorbs planet Earth. On the fringes of a newly growing galaxy where magic and fantasy are both very real, the inhabitants of three merged worlds must find a way to survive the trials Elysium sets out for them. Riven finds himself thrust into a whirlwind of chaotic events just trying to make it out in one piece, learning how to craft the dark arts to do his bidding as he strives to keep his loved ones safe.But the powers of this new multiverse have other plans for Riven's tiny planet, and Elysium's worldwide trials are just the beginning.*A mixture of brutal violence, the darker aspects of humanity, and comedy. Centered around a blood mage / warlock and his demonic summons. This story is full of gory fight scenes, you have been warned.**Inspired by 'Defiance of the Fall', 'Primal Hunter', 'The Legend of Randidly Ghosthound', and 'Infinite Realm' series. I hope I do them justice.*

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?

The Mc reincarnates in a world of magic and adventure as a Leech, follow his adventure in this mysterious and exciting world as he goes from the weakest creature to the shadow being that everyone is afraid of. Will he pursue the path of strength alone? Or without realizing it he will become the king of the greatest empire that ever lived.