MTL - The Corpse Ruler Confuses the World, All Seven Husbands Are Devils - Chapter 3 Which side monk do you want to sleep for today?

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.

【Your descendants in the Immortal Cultivation World have offered a plate of snacks】【Incense Fire Value +10】【Would you like to reward your descendants?】Yang Genshuo was surprised to discover that offerings in the Immortal Cultivation Family game could actually appear in the modern world, and that modern items could also be bestowed upon descendants in the game.Years later, peculiar rumors about the Yang Family spread throughout the Immortal Cultivation World.“To break through from the Fetal Breathing Stage to the Qi Refinement Realm, one needs to refine a strand of heavenly and earth's spiritual energy. I've heard of Red Flame True Qi, Xuan Water True Qi, and Green Wood Spirit Energy, but Yang Dao-friend, this... Liquefied Natural Gas, what kind of spiritual energy is it? How is it condensed?”“I've heard that the Yang Family's Spiritual Plant Technique is incredibly sophisticated, with each mu of Spirit Rice yielding twice as much as top-tier Spirit Plant Families, all thanks to a strange secret technique the family disciples cultivate called 'hybridization'.”“The Yang Family’s art of elixirs is unrivaled in the world, with new elixirs constantly being created. It is rumored that a spirit of the elixir named 'Artificial Intelligence' tirelessly deduces elixir recipes day and night...”“Nowadays, the Thunder Cultivators of the Yang Family are exceptionally strong, all thanks to the Yang Family's effort in creating a top-tier Thunder Gathering Array. Thunder Cultivators who enter this array can increase their cultivation speed multiple times. It is said that the array eye is known as—the power station.“As the Yang Immortal Cultivation Family grew stronger, Yang Genshuo actually became the only Immortal in the modern world by consuming offerings!Years later, facing an endless stream of people ascending the mountain to seek the Dao, Yang Genshuo calmly said,”There are no immortals in this world; you must believe in science!“Then he soared away on his flying sword.

Gray was just a normal guy. No powers. No family. No future.In a world where strength and status decide everything, he was at the bottom.He worked hard just to survive, taking care of his little sister after their parents were gone.But no matter how hard he tried, life never gave him a break.And after losing his only job, Gray was ready to give up completely.Then something strange happened.Just as about he was to end his life, an unknown voice echoed in his ears.[Welcome to the Great Tycoon System.]And for the first time, Gray had a way to fight back.From being weak and broke, he’ll rise to the top—one coin and one job at a time.Because in the world where money can buy power, Gray is about to become the richest and strongest man alive.

After waking up in the body of the Young Master of the Luo family, he finds he has the knowledge of hundreds of games and Light Novels. However, he finds his Dantian is crippled, so he can’t practice cultivation! Luckily, he has the Upgrade system.

Killing Monsters, doing Quests, and even killing people- it’s just too easy. I don’t have any Martial Arts? I have hundreds of light novels, just let me level up so I can get this Main Character’s Martial Art! The only problem is: Should I follow the “This OP character cultivation” or should I follow “Another OP character cultivation”?! The tragedy!

- Description from Novelupdates