Clan Prosperity Starting With My Servant Girls - Chapter 219: Lee He Song’s Dao

When our protagonist becomes the game character Jun Karentia, she thinks she has it made. She may be just a lowly support mage, but with her knowledge of the game, she knows she can finagle her way to the good ending following around the main character, Fabian. The problem? This game doesn’t end after one playthrough. Jun is prepared to guide Fabian through the second playthrough to the true ending when… Fabian abandons her. Now the Grand Duke Mayer Knox—captain of the Dark Knights and the secret final boss—is determined to have her join his party. Can Jun turn the final boss into the main character? Why is Mayer Knox so intent on having her in his party? And when will these rumors about being his lover stop?!

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.

Jiang Yang traveled to a parallel world and became a garbage undergraduate graduate.

He got married as soon as he graduated, and reached the pinnacle of his life. Then he achieved nothing, his family was poor, and he was unemployed at the beginning. He only had one skill. Just when he was in despair, his wife raised his chin, “I will support you.”

She took off her glasses, and the big devil who once made the singing world tremble came back.

after many years…

Jiang Yang watched Huayu being turned upside down under the ravages of his wife, he had no choice but to spread his hands, blaming only his company for dismissing him.

As for him, he is the only king of entertainment who can subdue the devil.

This book is also known as: [I am a man with BGM] [My wife is a big devil]

【Dog food, daily life, entertainment article】

- Description from novelbuddy

Li Jing, who is unemployed in a first-tier city, obtains a system where enjoying life can double the amount of money spent.[Congratulations, host for spending two thousand yuan to enjoy gourmet food, positive emotion one star, return ten times the consumption amount of twenty thousand yuan.][Congratulations, host for spending fifty thousand yuan to stay in a luxury hotel, positive emotion two stars, return twenty times the consumption amount of one million yuan.][Congratulations, host for spending one hundred thousand yuan to enjoy the pleasure of purchasing luxury goods, positive emotion three stars, return...]By becoming wealthy through the system, Li Jing finally experiences the joy of life, luxurious spending, perfect service, and transcendent status, all of which make him deeply understand the power of money.Especially those once unattainable goddesses, due to Li Jing's improved economic level and upgraded social circles, wonderful and unforgettable stories centered around him occurred.In the top floor suite of the world's tallest building, Li Jing stands with a wine glass in front of the floor-to-ceiling window, overlooking the entire city, and sighs:“People without money are merely alive.People with money truly live.”