The Only Favourite Ugly Husband - Chapter 147.1 - Big Changes

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.

Raidorl Zain was born and raised as the second prince of the Kingdom of Zain.

Raidorl lived a peaciful life surrounded by his kind elder brother and loyal vassals, however his fate completely changed drastically during his coming-of-age ceremony when he was chosen to be the holder of “Dáinsleif “, the excalibur (sacred sword) of the royal house.

His brother the first prince started to hate him as an enemy that threatened his claim to the throne, his vassals and even his own fiancée abandoned him and he was banished to a town in develpment at the borders alone.

Since then, Raidorl has struggled to survive at the borders that were a monster’s domain, gaining the trust of those around him, he found a new happiness with his friends in that poor and harsh life.

However… his fate change once again when the neighboring Arsline Empire started to invade the Kingdom of Zain.

Forced by his brother to fight to protect the kingdom from the Empire’s invasion, Raidorl decides to plot a rebellion against the overly selfish demands of all those people that banished him.

When the exiled prince takes the sacred sword on his hand, the curtains of a new heroic legend will open!

The sacred sword legend that started with “Rebellion”, begins here!

……………………………………………………………

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“After every fire, ants survive.”

…

Mysterious anomalous biological metals have polluted the world, and the world has undergone tremendous changes. Metal sickness is like a key that opens the door to evolution. Under the tide of evolution, there are no innocents.

The choice is up to you, do you want to be the surviving ants after the fire, or do you want to risk your life, step on the glorious long steps to the gods, and glimpse the supreme glory of the mother goddess?

…

Touch the totem in your heart, follow the inspiration, and step on the long steps of ascending to God:

[Amphibians] → [Atlantic Glory] → [Ningen]…

[Eight Arms] → [Nightmare in the Sea] → [Deep Divers]…

[Eagle Eye] → [Owl Ghost of the Night] → [Jersey Demon]…

[Living Dead] → [Grave Digger] → [Death Ferryman]…

…

“On that day, the world was polluted, and I was the source of pollution. Human desires are endless, desire is the best food on the way to evolution, and I am the embodiment of desire.”

– Joe Tour.

- Description from novelbuddy

Hao Ren, an ordinary university student, saved a little girl who fell from the sky. By accident, he swallowed a “candy” that fell off of that girl’s body and somehow became the Dragon King’s son-in-law……