MTL - Part-Time Taoist Priest - Chapter 57 Hongyang Road

Mimizuku, a small girl with chains on her wrists and ankles and the numbers “332” branded onto her forehead, wanders into the Forest of Night seeking to be eaten by a monster. However, when the ruler of the monsters, the mysterious and beautiful “King of Night,” refuses to eat her, she tries to formulate a way to convince him otherwise.

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.

Chen Rui, an otaku from earth, is reborn into a human body in another world, who falls into the legendary evil, brutal world of the devil called Mozu where humans are treated as food. He has to survive while facing horrors of the devil, violent dragons and a variety of power enemies depending on a strange super system chip and his wits. Surrounded by Devil’s beauties such as black-bellied lolita princess, cold queens, violent dragons, charming poisonous devils …

Wanting to live in the Devil’s world is hard! Wanting to live in the Devil’s world as a human is harder! Wanting a human to be the devil’s son-in-law is hardest!

Let us see how a small otaku uses power and strategy step by step starting from an ordinary human to writing a legend as the devil’s greatest son-in-law.

- Description from Novelupdates

Su Xiaoman is a fake daughter of a wealthy family. She is not related to her biological parents. She is rejected by her adoptive parents.
When she woke up again, she found herself wearing a book and became the village flower Su Xiaoman in the 1970s.
Su Xiaoman is the best wife of a chronology villain male supporting role.
The original Su Xiaoman, who dislikes poverty and loves the rich, is devoted to climbing high branches, and is obsessed with Jiang Yantang, the educated youth male protagonist who just went to the countryside.
Su Xiaoman is unwilling to marry Xie Mingtu because of his innocence, and is still obsessed with the male protagonist Jiang Yantang. Who knows that not long after, the second brother of the male protagonist Jiang Yantang went to the countryside to visit relatives, and found that the poor boy Xie Mingtu was the child of the Jiang family, and the male protagonist Jiang Yan Tang was held wrong.
Xie Mingtu returned to Jiang’s house in the courtyard, but he was ridiculed and ridiculed because he was gloomy and vulgar, and he couldn’t compare to the fake boy Jiang Yantang, and his wife was even more obsessed with Jiang Yantang…
In this way, Xie Mingtu was completely blackened, mad and ruthless, and became the biggest villain in the book, and ended up tragically.
When Su Xiaoman opened her eyes, Xie Mingtu, the biggest villain in the book, was about to feed her rice soup. Her clothes were tattered and her bones were thin. When she saw her wake up, her tone was humble and cautious:
“Manman?”
When Xie Mingtu thought that the woman would not give him any response, a pair of slender and tender hands grabbed his thin wrist.
The former wealthy fake daughter x the real son of the courtyard
[Growing-up male and female protagonists, the male protagonist has super potential. In the early days, he drove a tractor in the village, and later joined the army to fly a plane. 】

Content tags: sweet text through the book chronological text
Search keywords: Protagonist: Su Xiaoman ┃ Supporting role: ┃ Others:
One sentence introduction: True and false collision.
Purpose: work together, work together to become rich, and live an optimistic and positive life in the era of struggle.

- Description from novelbuddy