MTL - Master Pei’s Wife is a Devil Concubine - Chapter 917 The world that my young master built for you~

Liana, a humble omega raised in silence, awakens on her 18th birthday with the scent of her fated mate — the son of the Alpha. But the bond isn't simple. The Alpha has triplet sons, and all three begin to feel the pull toward her. Thrust into the center of political tension and pack rivalry, Liana must confront betrayal, ancient magic, and a forgotten prophecy.As she finds herself entangled with Kael, the stoic firstborn, Jace, the charming troublemaker, and Rowan, the cursed empath, Liana discovers she is more than she was told. Her wolf is the reincarnation of a Luna lost to betrayal. Her bloodline is royal, hidden in shadow. And her destiny is not to choose a mate but to unite a broken world.With Celeste, the Beta's daughter, unraveling in jealousy and Darius, a rogue Alpha with vengeance in his heart, threatening war, Liana must rise. Not as an omega. Not as a mate. But as the Luna fated to reshape the future.

A world filled with heroes with superpowers. A world attacked by calamity fiends. A modern world filled with wonders and dangers.

Shi Xiaobai, a child from normal Earth, walked into such a world, proclaiming to be its king. But at the first signs of danger, he is forced to make a choice, one which he cannot refuse for time would repeat, making him face the choice again.

He is not humble nor is he modest, but neither is he delusional. Yet, the Absolute Choice seems to make fun of him. Will the joke be on him or will he laugh at his opponents? There will be many watching his escapades, and there will be some joining him in his adventures.

To see through the world and to grasp its truth, that is the destiny of the King.

- Description from novelupdates

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.