MTL - Cultivating From Obtaining Experience - Chapter 276 I am practicing martial arts and you are cultivating immortality

Dumbledore always believed Voldemort was the greatest threat to the wizarding world until a thousand-year-old vampire showed up at Hogwarts with the deed in hand—“A thousand years have passed, and Hogwarts' lease is up!” said Dracula. “Headmaster, you wouldn't want your students to be homeless, would you?”“What do you want?” Dumbledore asked gravely.“Anything interesting.”“Well, I think the position of Defense Against the Dark Arts professor is quite interesting!”...And so, Hogwarts gained a professor who couldn’t be dismissed.McGonagall: “Albus, I don't think Professor Dracula's teaching is suitable for the poor children!”Dumbledore: “There's nothing I can do, no one can fire him.”...Draco: “My father is a governor, I'll have him get you fired!”Lucius slapped Draco on the head, “Mr. Dracula, Draco speaks without thinking. Please, don't fire the Board of Governors!”...This is the story of a vampire who lived too long and found amusement in the wizarding world out of sheer boredom.

An average man is reincarnated in the world of DxD! How do you survive in a world of battle-hungry monsters? With a cheat skill, of course! Devour the competition, becoming stronger with every fight! From the depths of the Familiar Forest, the Beast King will rise. (Harem, Gamer!SI)

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.

After years of exhausting work as an editor, constantly meeting impossible deadlines and dealing with frustrating clients, he finally reached the finish line—his long-awaited vacation. No more emails, no more last-minute revisions, just pure, uninterrupted laziness.His perfect plan? Lock himself inside his house, watch his favorite shows, playing video games, sleep to his heart’s content, and embrace a life of pure relaxation.But just as he was about to enjoy the bliss of doing absolutely nothing… he woke up somewhere else.Not just anywhere—but in another world, inside the body of a young noble boy. And not just any noble boy—the second son of a Marquis, notorious for his laziness and bad reputation.Great. Just great.Yet, instead of questioning the absurdity of his situation, he did what he did best—ignored everything and went back to sleep.Unfortunately, the world refused to let him be.---[System installed...][Congratulations, Host! You have been chosen as the new candidate of this world.][Please complete the following task to finish the quest and receive a reward.][Warning: Failure to complete the quest within the time limit will result in consequences.][...][...][...Host?][Didn’t you hear what I said?][WAKE UP!]Zzzzz…And so, his peaceful days were over before they even began.Now, with an annoying system breathing down his neck, a family that already expects nothing from him, and a world filled with power struggles and danger, all he wants is to laze around.But will the world really let him?