The First Cultivator - Changing Existence - Chapter 822: An Envelope -

“One accidental signature, and now the legendary Shadow Queen is living in my house... wearing my T-shirts and refusing to leave! She claims to be cursed with laziness, but why did I just witness her destroy a monster with one finger? And why does she keep looking at me like I’m her next target? Someone help—I’m not ready for this kind of responsibility!”

Could lust turn into love?

*Mature Content.*

*This book is not for young readers.*

Paula was arranged to marry William although he already had a lover, Lea. Sounded like a cliche arranged marriage story because he planned not to touch his wife and intended to divorce her one day when his lover returned. However, his plan failed miserably. He did not expect that his wife was an aggressive woman and always demanded her rights as a wife. She had him wrapped around her little finger.

Finally, William and Paula agreed to live like friends with benefits. They would do fun things in bed, with no feelings attached. Of course, they did it in secret, without telling a word to Lea. In addition, they also agreed to get a divorce one day, when everything was under control.

However, things got complicated when Paula and Lea were found pregnant. Who would William choose? Paula or Lea?

Reincarnated without memories, given a second chance as a chimera with a limited lifespan. Leon struggles through his strange new life. He attempts to improve his dungeon and evolve himself to live longer and become the strongest Dungeon Master—no. The Dungeon Overlord.Helped by his Dungeon System: the mysterious Ifrit, Zafira a Level 100 Succubus Queen, and his band of trustee goblins. Leon aims to overcome his limits, survive and reach the pinnacle of the world. Whether through trade, domination, or tricking the hero's beautiful party members into becoming his private mercenaries.Leon will face the weakest and strongest beings in the magical world of Umbra and surpass all!

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.