I'm in Hollywood - Chapter 167: Hi

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.

Mimizuku, a small girl with chains on her wrists and ankles and the numbers “332” branded onto her forehead, wanders into the Forest of Night seeking to be eaten by a monster. However, when the ruler of the monsters, the mysterious and beautiful “King of Night,” refuses to eat her, she tries to formulate a way to convince him otherwise.

Q: How would you approach your target?

Tiger Tribe:
Jiang Yu (excited): “Cure him, give him medicine!”

Future Mecha:
Duan Jingzhe (at a loss): “… umm … feed him expired nutrients?”

Ancient Court:
Donghao Yang (banter): “Follow nature’s example and flirt shamelessly.”

Next unlucky protagonist: “…”

This is a collection of three short stories in which each protagonist crosses to another world or is reborn.

- Description from Novelupdates

Starting over once more, he has entered this “living game” again in order to control his own fate.

This time, he will not be controlled by others.

Previously the Level 200 Sword King, he will rise to a higher peak in this life.

Methods to earn money! Dungeon conquering strategies! Legendary Quests! Equipment drop locations! Undiscovered battle techniques!

Even the secrets Beta Testers were unknowledgeable of, he knows of them all.

Massive wars, life advancement, entering Godhood, sword reaching to the peak; a legend of a man becoming a Sword God has begun.