God Level Summoner - Chapter 199 – Second Round of the Regular Season

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.

After suddenly dying from work exhaustion in the modern world, a young man named Clayton wakes up in someone else’s body in a foreign world styled like medieval Europe. Without knowing how or why he ended up there, Clayton slowly realizes he now inhabits the body of a teenager who has just survived a deadly illness—and lost his beloved father.But his new awakening isn’t met with hope; instead, it brings pressure and intrigue. The people around him—from city officials to seemingly kind neighbors—all share one goal: to seize the valuable house his father left behind. One by one, their masks of kindness slip away, revealing the harsh reality of this new world.With a weak body, a nearly dead farm, and a loyal, skinny dog, Clayton must fight to survive. He not only has to delve into the memories of his body’s former owner but also navigate a world filled with manipulation, magical creatures, and social injustice.This world isn’t just an escape from work stress—it’s a battlefield for his soul and pride.

Su Yuzhou reincarnated into the ABO world after his death and became a top-level alpha. Influenced by the conceptions of his previous life, he never thought that a susceptible period would have any effect on him – after all, as an upright young man, how could he be enticed by pheromones to push down a weak Omega?

Then, he became the one who was pushed down _(:з”∠)_

Atypical ABO story, Omega Gong X Alpha Shou.

- Description from Novelupdates

A back-to-basics(?) monster evolution novel.