Master Zhan, Calm Down! - Chapter 2621 - : -

Of the ancient gods only one remained in the world. This god lived alone for thousands of years and no longer had any desires. Legend had it that during the great war between the worlds he used his powers to turn the tide managing to seal the cataclysmic rift bringing order back into the three realms. Time flew by and hundreds of years passed in the blink of an eye.

In this time Shen Li was born into the demon world. Known as the Azure Sky King she was used to living a bright and dazzling life full of successes. Little did she know that her 1000th birthday would bring misfortune to her doorstep – a politically arranged marriage with her name on it. The Azure Sky King would henceforth marry the thirty-third grandson of the Heavenly Emperor, Fu Rongjun. This arranged marriage was meant to unite the Heavenly realm with the Demonic Realm, bringing the two together. Most would consider it good fortune to be related to the Emperor.

Unfortunately Fu Rongjun was infamous throughout the two realms for his Casanova personality. As the King who called the shots in the Demonic Realm, she had the ability to quell uprisings and end wars with a swing of her silver spear – there was absolutely no way she would marry such a flirtatious idiot. She had to escape from this marriage somehow even if it meant death!

In her escape Shen Li, never expected to meet a man that didn’t belong to any of the three realms. This oddball was truly strange!

- Description from Novelupdates

Transmigrating into the world of Douluo Dalu, I unexpectedly awakened the same Martial Soul, Luo Sanpao, as Yu Xiaogang, and was discovered and taken as a disciple by Liu Erlong.Originally, I thought I would have to live cautiously under Liu Erlong's protection for the rest of my life. But who knew that a system would suddenly appear, binding me to female protagonists and allowing me to grow stronger by earning “conquest points,” evolving my Martial Soul!Now that the system has arrived, Xiao Yu feels there's no need to live cautiously under Liu Erlong's protection anymore. Instead, he can openly rely on conquering a group of female protagonists to dominate Douluo Dalu!Wherever there are female protagonists, there will surely be Xiao Yu's presence!And wherever Xiao Yu's presence is, his Martial Soul, fully evolved into the Radiant Holy Dragon, will surely shine upon the world!Liu Erlong: “Xiaogang, let's keep some distance from now on. I'm afraid Xiao Yu might misunderstand!”Xiao Wu: “Brother, I've fallen for Xiao Yu. Please forget about me!”Ning Rongrong: “Xiao Yu, from now on, my Seven Treasure Glazed Tile Pagoda will be your exclusive money bag!”Zhu Zhuqing: “Xiao Yu, as long as you have the ability, I don't mind you taking all three of us sisters!”Qian Renxue: “For you, giving up the Angel God's position is nothing!”Hu Liena: “Xiao Yu, once I become the Pope, I'll immediately step down for you. I'll focus on being your wife!”

Quinn Winter is a young man from another world. One day, he is suddenly chosen to become the new Demon King. But the Demon Kingdom is in big trouble – it's losing a terrible war against the human kingdom called Gran'le.To help his people, Quinn comes up with a risky plan. He will sneak into Gran'le and learn their secrets. But things don’t go as planned. A powerful noble sponsors him, and he ends up joining Heavenward Academy, the top school for training future heroes.At the Academy, there's a big challenge called the Selection. The best students become Paladins – magic knights who fight demons. Quinn doesn’t want to become a Paladin. He is a demon king! But now, he’s stuck in the Selection… and if he wins, he’ll become the very thing he’s supposed to destroy.He started the day badly. Now, things are getting even worse.

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.