Idle Mage: Humanity's Strongest Backer - Chapter 265: Lake of Blood

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.

An accident gave Ye Han a magical ability to see through. Since then, his life has become rich and colorful. He has developed the strongest business empire, dominated the gambling world, and rejuvenated his medical skills. He has become a master of medicine and Taoism. The goddesses rushed towards him one after another. As a man, and a limited edition man, Ye Han was under a lot of pressure and had to go on an exploration with a few tomb robbers. However, a shocking secret from ancient times to the present gradually emerged. in front of him!

- Description from novelbuddy

Nicholas Marjan—known as Niels—was once an Asian football-obsessed loner in the modern world. A master of FIFA Career Mode, addicted to tactical YouTube breakdowns, and endlessly chasing transfer window drama, he lived the beautiful game from behind a screen.Until the day he died.Reborn in the late 2000s in a small European country, Niels wakes up in the body of a once-promising young footballer whose career was tragically cut short by a brutal ACL injury. With no chance to play again, and haunted by the weight of lost potential, the only path forward is through coaching.Now an assistant at a struggling lower-league club, Niels carries two things no one else has:-Knowledge of football’s future-A mysterious cheat-like instinct for scouting raw, hidden talentAs he begins to make waves with his unique coaching style, Niels catches the attention of the football world. Offers from top-tier teams in the top five European leagues come rolling in. With a growing reputation, Niels sets out to transform not just one team's fate—but to leave his mark on the biggest stages in world football.

“What! The young master has married another concubine?”After Gu Changge is bound to the system, sharing innate talent and even cultivation results with a Daoist Couple (wife) is possible. Whether it's consuming elixirs or treasures from heaven and earth, or from daily cultivation, everything can be shared!“Just by binding with one partner, I went from a waste to a spiritual body. What if I had multiple partners?”Since that day, he realized that working hard in cultivation was not as effective as taking in more spouses, and that taking elixirs himself was not as good as feeding his wives!The aloof and warm-hearted sect's holy maiden, the playful imperial princess, the dragon race's transformed girl with white hair...【Your Daoist Couple has cultivated through the night, shared cultivation progress!】【Your Daoist Couple has grasped the essence of swordsmanship, shared insights!】【Your Daoist Couple has consumed a supreme snow lotus, comprehended a law, shared!】【Dual Cultivating with your Daoist Couple, rewards...】(Disclaimer: Dual Cultivation is a unique method of cultivation where a man and a woman cultivate together by having sex)As he feeds his wives every day with ease and pleasure, he unknowingly becomes a celestial being, perfects the holy body, and stands above all living beings!(The story is focused on daily life, is lighthearted with a touch of humor, and does not stress the protagonist)