Naruto: Journey to Reach You - Chapter 17

Song Fengwan was dumped by her fiancé, who had been dating her for a year, and an illegitimate daughter appeared out of nowhere to ruin her family.

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.

Ye Gushen and Tang Suiyu were married by imperial decree!Tang Suiyu thought that this cold-hearted and emotionless man married her just because of a marriage contract, but in fact...“Honey, autumn is here...” “Good girl...”The next day, several truckloads of clothes were delivered home.“Honey, green grapes taste good...” “Good girl...”The next day, she acquired dozens of vineyards.“Honey, someone said I don't deserve you!” “Good girl...”The next day, that person, huh, where did they go!A long time later, Mrs. Ye, who was spoiled beyond limits, said that her post-marriage life was overwhelmingly sweet![1v1, both male and female leads are incredibly pure, overwhelming spoiling]

An angel made a mistake, resulting in Shiihara Daiki’s death. In order to hide the mistake, he was then sent to a different world. The angel will grant him one wish as a payment for keeping it a secret. Daiki asked for a Heavenly Castle floating in the sky without hesitation.

Suddenly a floating castle appeared in the new world, which causes confusion amongst the people. They attempt to contact Daiki in various ways. A country tries to steal it by force, while another seeks to befriend him. What in the world would Daiki do?