Did she already know what I would ask her for? - Chapter 23: Who said shopping for clothes with a woman is boring?

The servant looked at the grieving princess. “Your Highness, the Regent Prince sent your scholar fiancé to the Western Butcher’s daughter!” 

The princess gritted her teeth, speaking to her servant that it matters not as she has other suitors in line. Many days later, much to her dismay, the servant ran in a hurry. “Your Highness, the Regent Prince expressed his intention of becoming your suitor! All other men in line were sold to Gou Lan Red District!”

The princess was distressed. She said to her servant it matters not. She’ll soon be married to Prince Fuma. Then the uneventful came. The servant once more ran to her, almost tripping in the process. “Your Highness, Prince Fuma was imprisoned at home! Meanwhile, there’s a red sedan chair waiting at your residence for your marriage! It was led by the Regent Prince!

The princess was stunned. For a day such as this to come, it seemed impossible. This nothing but a sad story of a female boss crossing back in time to hold the thick thighs of the big boss. But while raising him, she was eaten in the process.

- 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.

It burned an entire kingdom to the ground for petty revenge against the humans.

It ransacked the Board of Sorcery, hoarding all the cores in their treasury to ease its greed.

It killed and destroyed a God for entering its territory without its permission.

In a cavern within the Great Aeternus Labyrinth, a reptile seemly like any other hatched from its egg.

With a growing intellect it shouldn’t have and adaptability traits that is impossible for its current tier of evolution, it began its life surviving and growing stronger.

Read as this reptile mutate and evolve. Watch as it change the world of Atinen, as it usher the world into a new age of chaos and destruction as well as prosperity and hope.

The crumbling Vienna System is unable to stop the rise of the Second Empire, as the Emperor's nephew is about to visit his faithful Paris.Protector of the Apennine, Honorary Chairman of the Rhine Federation, Close Ally of the Kingdom of Spain, French Empire Augustus Jerome Bonaparte:I will make France great again!--------------------(Reasonable historical deduction party, Paradox Interactive game players rejoice!)