Being Able to Edit Skills in Another World, I Gained OP Waifus - Chapter 38: Cheat persuasion and uninvited guests

She roused from a pool of blood, vowing to exact retribution on those who had harmed her.

Zavier met Cosmic Consciousness after his death. He was satisfied with every system that Cosmic Consciousness exhibited, so he wanted all of them. Surprisingly, the Cosmic Consciousness obliged him.

Zavier was reborn in an isekai full of magic and alchemy. Now, he had many routes to upgrade. Interestingly, to coordinate these systems, Cosmic Consciousness gave him the gift of being able to duplicate himself. He could clone a finite number of himself to manipulate these systems.

Magus, Alchemist, Mesmer, Tamer, Hunter, Vampire, Werewolf, Dragonknight, Necromancer.....

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By the way, it wouldn't appear NTR or some bullshit harem of courtships. MC of course will have harem but not for cliches.

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.

“Listen, buddy, your cock was the last thing that got inside me, so unless I’m having some kind of miracle baby, yeah, you’re the father. Congrats.”—Raelynn had one goal that night—drown her sorrows in cheap whiskey after getting fired from her job. What she didn’t plan on was two surprises: one, a steamy night with a ridiculously good-looking stranger, and two, a $10,000 check for her the next morning. Jackpot, right?Wrong.Nothing could’ve prepared her for the biggest surprise of all—she’s pregnant. And the father? None other than Elion Vaelorian, the country’s richest and most powerful businessman, with a face that could melt ice... and a personality just as cold.What Raelynn doesn’t know is that Elion isn’t just any man. And the baby she’s carrying? Let’s just say it’s far from ordinary, and its existence could shake the foundations of the world she knows.