LEVEL EVERYTHING UP in my Eldritch Tribe - Chapter 104: Borgias Assassins

Su Qingqing was being watched by a pervert.

Yes, that man with a model figure and an immortal appearance that was all about women’s aesthetic points, however he was ruthless and refused to recognize her. He also successfully fooled her into a marriage with only ninety-nine yuan!

It should’ve been that each takes what they need, it’s mutual benefit. Typically, everything should revolve around interests.

But only watching her make a fool of herself, secretly letting her go, mocking her for being ugly without make-up!
Even worse, he squatted at her bedside one night.

His handsome face was full of indignation.

What do you mean by warding off evil spirits?

What contraception??

The man laughed wantonly, and there was no trace of cold air in him. “Darling, I missed you all night last night.”

“Shut up! What are you trying to do?”

The man hooks his lips, trapping the person under his body with an overwhelming advantage. His posture was very provocative.

“What do you want to do…”

Eh? Is it not enough to pay you back? Do I have to sleep with you??

Su Qingqing’s heart trembled. “Go away, you pervert! Let go of me! If you have the ability, let go. Let…let’s fight!”

“Fight? Then we can fight in bed.”

“…”

“Who shouts stop first is the loser, how about it?”

He didn’t even give Su Qingqing the chance to regret, as the man kept her lips shut.

Wuwu, this husband, she can’t stand it, can she give him away?

- Description from Novelupdates

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.

“O, Hero!” With that cliched line, Kazuya Souma found himself summoned to another world and his adventure–-did not begin. After he presents his plan to strengthen the country economically and militarily, the king cedes the throne to him and Souma finds himself saddled with ruling the nation! What’s more, he’s betrothed to the king’s daughter now…?! In order to get the country back on its feet, Souma calls the wise, the talented, and the gifted to his side. Five people gather before the newly crowned Souma. Just what are the many talents and abilities they possess…?! What path will his outlook as a realist take Souma and the people of his country down? A revolutionary transferred-to-another-world administrative fantasy series starts here!

The only way to stop the earth’s doom.Is to seduce the girl who is the student council president.