Cosmic Professional Gladiator - Chapter 799 Breakthrough, Third Realm!

Liu Ling, an unmarried activist, has been unrestrained all her life. Before her death, a friend asked her if she had an unfulfilled wish, and Liu Ling replied she could not raise a baby.

The friend fell into trouble; this is not easy to do. Not waiting for her friend to speak, Liu Ling said that if she gave birth to a child, the mother would die, and her child would live, so let’s forget it.

Unfortunately, God heard.

After her death, she did not enter the underworld and transmigrated into Song Zhaodi. She also had seven children, all of whom were not her own.

- 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.

At 32 years old, Harry Potter, Order of Merlin – First Class, Head of the Department of Magical Law Enforcement (DMLE), walked through the Veil while awaiting his death. Because he was tired of this life.But Fate or maybe Death had different plans.Beyond the Veil, he arrived in a world unknown to him. Woke up with a 7-year-old boy’s body in a Kingdom called “North”. With the symbol of Deathly Hallows on the back of his right hand. As the son of a House Lord.A new life, a new beginning, and a second chance to live the life he wants.---------------If you want to access early chapters, maps, character pictures, and read ahead of time, you can visit my p@treon page and become a member or patron.You can find my page at: www.patreon.com/c/vanguard_v7 chapters weekly and 7 bonus chapters for every weeks if we reach the quota for Power Stones. So don’t forget to send Power Stones, please.The cover belongs to me.P.S. The story was originally an old, dropped fanfic. I am rewriting, editing, and making some changes and additions. There will be more magic and kingdom-building materials. I will also continue to write after the dropped part and complete the story.If you want to read original dropped version of this story, its name is 'HP transmigrated into Domeric Bolton' by Fortunate_Soul.

A genius talisman practitioner is reborn as a seven-year-old girl! However, her innocent appearance belies her vicious personality.