MTL - There Is Chef Yu In The Entertainment Circle - Chapter 46

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.

Everyone is not optimistic when the most renowned man in Yuncheng married the least favored miss of the Mu family.

Rumor has it that the young Miss Mu family is pathetic, weak and dainty and an easy subject to bullying.

Mu Huan nodded enthusiastically: En, I’m a bully.

The big man who was bullied by her didn’t know whether to laugh or cry: Doesn’t your conscience hurt whenever you claim this?

The once unloved Mu Huan, the moment she was a pampered wife, she became the mad devil . Since then, she was covered from fighting someone and taught when doing homework.

What evil step-mother, scum step-sister, black hearted white lotus, Mr. Bo will go all out to kill!

Being pampered and held in the palm of his hands, the conqueror of his heart, Mu Huan, was interviewed one day.

“Mrs. Bo, what is the secret to you and Mr. Bo’s everlasting love?”

“I like him the most, and he likes me best.”

- Description from Novelupdates

To save a doomed fantasy world, I killed the main characters, then destroyed the game world, and fell into another timeline as the academy's top seat and rival to the protagonist.Now, I'm trying to save the world and steer it towards a better ending…But I'm the final boss.

After Chuzheng is suddenly pronounced dead by a system all of a sudden, her only worry in life becomes—spending money. Ever since she gets stuck with this system, her back is no longer sore and her legs no longer ache. Heck, there isn’t even a time when she goes out of breath.System: Let us set a small goal first and squander a hundred million… Little Miss, stop right there! Don’t activate the invincible mode!(▼皿▼#) Chuzheng: Can you please explain what is this thing that is leeching off me?Random Thing: Babe, you can do whatever you want to me.Chuzheng: (touches her blade) In-In that case, I will not stand on ceremony.System: Little Miss, please put the saber down right this instant! (▼へ▼メ)#LittleMissAlwaysDoesAsShePleases.