Mysterious Awakening - Chapter 556 - 553

Demons? Monsters? It was a fox demon who came to his room and seduced him at night. A wedding to tie their fates together.Bai Yunzhi, the fox demon who fell in love with Su Bian. Su Bian helped her mother 25 years ago, and Bai Yunzhi repaid her family favor. She dual cultivates with Su Bian on her wedding night with twists and turns, thus tying the red rope of marriage to each other.

Heaven Concealing Great Sage Xie Chuan was plotted against by his enemy. Trapped within the God Burial Valley, he found a supreme martial technique hidden in a tomb called Demon Refining Heaven Swallowing technique.

Millions of years after the betrayal, reincarnated in a direct disciple’s body belonging to a small sect named Cloud Mist Sect, Xie Chuan finally broke out and escaped from God Burial Valley.

“In my previous life, I had only concealed the heaven with my hands. This life, I want to refine demons and swallow the heaven!”

The heaven swallowing expert who walked out of God Burial Valley was just born!

- 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.

Qin An was a former senior grim reaper who retired after serving the underworld for thousands of years. Because of his outstanding service and had enough merits, he was given a chance to become a human and unexpectedly transmigrated to the Interstellar era. But, how can he live his retirement days when has no money and everything? So, Qin An entered a reality talent show for idols and became an existence that everyone admires to.