Primordial Villain With A Slave Harem - Chapter 13: Talk With The Ayame

What happens when a scientist from a futuristic world reincarnates in a World of Magic and Knights? An awesome MC is what happens! A scientist’s goal is to explore the secrets of the universe, and this is exactly what Leylin sets out to do when he is reincarnated. Dark, cold and calculating, he makes use of all his resources as he sets off on his adventures to meet his goal. Face? Who needs that… Hmmm… that guy seems too powerful for me to take on now… I better keep a low profile for now. You want me to help you? Sure… but what benefit can I get out of it? Nothing? Bye. Hmmm… that guy looks like he might cause me problems in the future. Should I let him off for now and let him grow into someone that can threaten me….. Nahhh. *kill*-

Alternative: Leylin is transported from an advanced technological era into a medieval world— except there’s magic. Equipped with “only” his quick wits and an A.I. chip fused to his soul, he sets out to become the most powerful magus the world has ever known. In a land divided into the Light and Dark Magi, the weak can either be cattle or disposable slaves. Only the strong can determine their lives, and only they have the luxury for virtue. Yet strength is only a tool for Leylin, like any other. His goal, in the end, is his own.

After millions of years spent hunting and battling, the forces of darkness were finally pushed back and eradicated. But as Twilight’s lifespan approached its inevitable end, he made a fateful choice—to reincarnate into the future, where a golden age was prophesied to unfold.Now reborn as Twilight Nightfall, a boy who had lost everything to the world, he remembered nothing of his former life.Stripped of purpose and will, he strayed on the path of despair. Yet, in his darkest moment, a reason to live revealed itself.Chosen as one of the sovereign system holders, Twilight was granted an opportunity to prove himself.With sufficient potential, he could earn the highest privileges, rise to the rank of seeker, and represent humanity in the Astral Realm—a game-like world filled with mythical races, limitless resources, and boundless opportunities.Follow Twilight as he ascends to the apex of the Astral Realm, dominating players and rivals alike while gradually piecing together the shattered fragments of his past life, becoming a legendary figure in all worlds.

Travel through the world of Naruto, activate the god-level forging system, and a super strong man has risen in the ninja world!

One after another artifact appeared in the ninja world one after another,

So the whole world is boiling!

Grass Pheasant Sword, Ten Fist Sword, One Hit Kill – Murasame!

The beheading sword, the Zanpakutō, the flowing blade is like fire・d solution!

Red Sand Scorpion: “My puppet is not worth mentioning in front of his ninja gear!”

Four Raikage: “What?

He can slash through my Thunder Dun armor with a single knife? ! ”

Madara Uchiha: “I can’t even beat his ninja gear. What kind of fourth ninja war is going on?”

- Description from novelbuddy

The age of darkness has arrived.