MTL - The Years When I Disguised As a Man at the Noble Academy - Chapter 93

The heavens and earth change when the blood phoenix descends.

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.

“Then why don’t I marry you!” Yu Dong suddenly proposed.

“You…” Xia Feng thought he had misheard.

“You see, you’re looking for someone to marry to ease your mother’s heart, I also want to get married, we’re right in front of the doors to the Civil Affairs Bureau, and with all our papers too!” Yu Dong exclaimed while holding up her red household book.

“And the most important thing is that we just broke up with our exes. This is fate, ah!”

Right up until they left the Civil Affairs Bureau again, holding a newly registered red book, Xia Feng remained dazed still wondering, how did he end up getting married?

Did he just pick up a wife at the doors to the Civil Affairs Bureau?

What Xia Feng doesn’t know is that Yu Dong traveled back in time from 10 years in the future.

Now, having a second chance in life and able to secure a good husband, Yu Dong will live her life at full throttle and without regrets.

- Description from Novelupdates

Loose cultivator Shi Lang gradually found himself in the realm of invincibility. However, when he finally tried to ascend to the higher realm, the spirit of the world was nearly exhausted.

So, between his ascension to a new world or the well-being of his home, he chose the latter and sacrificed his life to save the world.

Nobody knew what he gave up for the world, and he told no one.

Although his sacrifice had gone unsung, there was still someone who witnessed everything. A treasured artifact he carried on his body preserved his soul and let it escape a tragic end.

Eons passed.

The human race stepped out from the age of cultivation into an age of stellar conquest.

The spirit energy in the world was now scarce, but humans found other means to excel.

In this highly-advanced time, Shi Lang's soul has found a chance to be reborn.

What happens when an ancient cultivator that neared the level of a deity before his first death gets a second chance at life in the space age?