MTL - Travel to a Primitive World to Build Infrastructure - Chapter 1

As the era of dragons gradually came to an end, as arcane masters left countless riches and legends under the starry sky, one awakened youngster after another began to set foot on their journey.

He just wanted a quiet vacation and a good espresso... instead, he ended up seducing half the city.------Lux Vaelthorn wanted three things: a good coffee, peace and quiet, and zero responsibilities.What he got?A mansion, a system with the personality of a deadpan butler, and a bunch of heiresses fighting over who gets to be his first “investment.”As the heir of Greed and Lust, Lux was born to dominate markets, hearts, and boardrooms. But after centuries of cleaning up his parents’ messes in the underworld, he rage-quit Hell’s finance department and took a hundred-year vacation to the mortal realm.His problem?Even without trying, he’s too hot, too rich, and too damn magnetic.His Incubus Pheromones seduce emotionally unstable rich girls like clockwork.His Greed System scans bank accounts like X-rays.And thanks to a “minor” celestial bounty on his soul, some entities either want to marry him… or murder him.[Warning: 3 rich virgins detected within 15 meters. Incubus Pheromones activated.][Recommendation: Flee. Or flirt. Your call.]Lux just wanted caffeine.Now he’s got a mansion full of horny heiresses, a schedule full of power plays, and a city that thinks he’s a billionaire playboy CEO.Fine.If he can’t nap… he might as well rule.

Hitoshi's life sucked and then a truck made it even worse.But death wasn't the end. He wakes up in a fantasy world as a slave, expecting more of the same bad luck. Then a maid from the super-rich Aoi family buys him to work at their huge mansion. Finally, a break, right?Wrong.Sure, the mansion is amazing. The food is great. And yeah, the Aoi family treats him way better than he expected. But something's... off. Why do they watch him so closely? Why does everyone get weird when he smiles? And why do bad things keep happening to anyone who gets too friendly with him?Hitoshi just wants to be a good servant and make everyone happy. He doesn't realize that his kind heart and helpful nature are stirring up something dangerous within the Aoi household. In this new world, his greatest talent might become his biggest problem.They say no good deed goes unpunished. In the Aoi mansion, every act of kindness pulls him deeper into a web of obsession he never saw coming.“Reincarnated into Madness: Yandere Family's Unwanted Slave” is a story about second chances, magic, and what happens when being too nice leads to some seriously creepy consequences.

With the Legendary Mechanic System, I transmigrated to Marvel Universe to be Dr. Zola’s assistant.

With Mechanical Force Analysis, I can learn every black technology.

Winter Soldier’s arm? I built a better one for you.

Iron Man’s armor? I already made it a decade earlier.

Doc Ock’s tentacles? I am the one who provided core technology.

Hulk’s mutation? Sorry, I was there and got hit by the radiation too.

As for a certain purple potato, can he collect all Infinity Stones?

……

However, I only had one simple ultimate dream. That is to go home…

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