My Beautiful Disciples, I'm really not the Main Character! - Chapter 10 - : The Prestige

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.

They say the greatest blessing is marrying the idol you always dreamed of.

Naoki traveled to the Pokémon world to inherit a ranch, and gained the ability to use cooking to bring magical powers to Pokémon.

As a result, some strange changes occurred in the Pokémon in the ranch.

The big milk jug that can use [Super Roll] at 360 degrees without any blind angle, the motorcycle lizard that leaves afterimages everywhere it passes as fast as lightning, the twin-tailed super that can knock Kirby beasts away with one hammer Hercules the Forge…

——————

The wild trainer who learned the news came specially to challenge the practice.

Naoki: Has the challenger arrived?

Steward Rotom: Report to Lotto, he got into a fight with our milk cow Lotto.

- Description from novelbuddy

Billions of Humans transmigrated to another dimension, each became a Land Ruler at the start and owned a castle. Each Land Ruler would draw a random starting Soldier-type Building, used to arm their castles. Recruit more soldier-types, plunder resources, and dominate the world! Some drew the Sacred Palace of Knights from the start and commanded troops of knights to crush all obstacles in its way, ruling over vast lands. Some drew the Goblin Cave, developed castle trade, and became renowned dirty profiteers. Of course, more people only drew the most unremarkable soldier-types: Goblins, Lizard Man, Skeleton Soldiers…… These people could only kneel before the powerful Land Rulers and serve them as slaves. But Mike was an exception. His starter soldier-type building was, Dragon Nest! Glacial Dragon, Hellfire Dragon, Undead Dragon, Black Dragon…... When one after another dragon egg appeared before Mike, he suddenly felt that…...conquering the World seemed quite manageable?