MTL - After 10 Years of Chopping Wood, I Am Invincible - Chapter 455 , attractive bodyguard

All I ever wanted was for famous detectives like Sherlock Holmes or Arsène Lupin to appear in my dreams and share their wisdom. But instead, why am I hearing the voices of notorious serial killers in my head, guiding me to solve a string of mysterious cases?

To save the hopeless Dark Fantasy World, I held back my tears and destroyed the world, then killed the Demon King and returned.

Now, I’m trying to save the world using the ‘System’ I gained as the ‘Regressor’s Privilege’… but the Main Heroines have also awakened their memories of the previous timeline.

God damnit.

“Pretend to be my lover and join the social circle.”

Selena, the top star that had the entire world’s attention, was suddenly warped to Northern Duke’s land during an accident while filming. Kalcion, the Northern Duke that saved her from the infernal beasts, offers Selena a chance to go back home in return for collecting information in various social circles by pretending to be his lover. Selena quickly accepts Kalcion’s offer, but…

“Why in the world can’t you do this!?”
“Don’t you think that the answer to that should be obvious to you, the actress, not to me, the duke?”

There was a critical problem. The Northern Duke’s acting skills are horrible!

“…Let’s change the plan. I’ll seduce you instead.”

And thus the contractual relationship between the two started. Will Kalcion’s acting skill improve first, or will he start to have true feelings for Selena instead?

Leon was a robotics engineer with a bright future—until he was run over by a military truck and killed on the spot. But death wasn’t the end. Thanks to a cosmic glitch and to an idiot, Leon wakes up in a new world, reincarnated as the son of a minor noble family guarding the wild frontier of a massive Empire. With his intact mind, enhanced brain, and a world begging for progress, Leon sees opportunity everywhere—one that he will grab for sure.But not everything will go smoothly. Monsters come over in the winter, the Empire monopolizes magic and technology, and society clings to barbaric ways. Refusing to accept the status quo, Leon decides to reshape his family’s backwater territory into a land he would enjoy living in. Armed with knowledge from his old life, modern problem-solving, and an irreverent attitude, he plans to revolutionize his territory. But in a land where magic is rare and unknown to ordinary people, he knows he’ll need more than blueprints to succeed. He will need his own wizards and witches...Hey-ho! Welcome! I thought I need to add some information to those who want to know if they should just skip it or not: First, I ain't planning to introduce world-changing, thought-provoking ideas here. It is all for the plain and simple reason of having some fun. What you need to be aware of if you need more details:- Yes, this is an isekai story. No, there are no 'cheats' or systems involved with gaining skills. He is just a guy reincarnating with a gene-modified brain, so it explains why he can remember things and be smart. That is it. Think of it as him having a perfect memory. If you perceive confidence as arrogance, you may very well dislike the MC right off the bat. He is not someone who will lay low and try to blend in when his territory is the most backward and abandoned place in a vast Empire. Where the throne is so far away, messages take months to go back and forth.- The story mostly focuses on kingdom-building stuff and slice-of-life elements, not on conquest or curb stomping others. The main conflict will be centered around wars, yes, but it won't be one guy vs. the world or something like that. Magic is going to play a big role in building up the territory, as I plan to branch out into magic technology later on. I am going to rely heavily on magic because I am mostly a fantasy writer and not an engineer.- The MC's main goal is to enjoy himself. This also means girls. So there will be a harem. Those who are familiar with my works, how I do groups, and how my characters act will know I don't like doing cardboard cutouts of characters. Most of my stories have more than one character accompanying the MC. The same will be true here, with the extra caveat that they will also be involved romantically with the MC. - The story plays out in a 1st person POV. There won't be jumping around multiple POVs; I don't like that. Only when the story requires it and the MC can’t be present by himself for some story parts.- Don't take this story seriously nor look for scientifically 100% real and codex-like solutions for problems. This is a fantasy world, a totally different culture, and with history, that is NOT OUR world! There is magic here, and the MC has a supercomputer for a brain. I think that says it all. - My main goal is to enjoy writing some whacky but real-sounding scenarios. They will be based upon feasible ideas, but I am not writing a damned textbook about thermodynamics. Laws will be bent and broken when the story needs it.- Regarding smut, there are some chapters with erotic scenes, but not every other chapter. So expect it when the mood is there in the story and not because I must cram as much snu-snu in as possible... That won't happen.- No guns. Why? Every similar story has guns. This doesn't. This has mechs and power swords. Why? Because I said so.