Adorable Twins: A Hunter's Wife Has Space - Chapter 52 - : Crisis in the Night

In her last life, she was miserable and ordinary. This time, she got into the fashion and was reborn in another world. She was still the same person… even with the same body and face. What was the point of reincarnation? A childhood companion? He always pulled her hair and made troubles for her? A handsome boy? The boy never looked at her and was 15 years older than her! A prestigious teacher? The teacher spent his days eating and drinking, coaxed, played tricks, and controlled others… Too scary and better run away? No no no, such a challenging life was bound to be wonderful! Now let me take you back to the 70s and live a fast life!

- Description from Novelupdates

The ordinary yet not so ordinary detective, Wen Wen, woke up in a mental hospital and discovered that his right hand was connected to a mysterious space called the 'Catastrophe Containment Facility,' from which he could acquire the powers of the monsters imprisoned within!By capturing a vampire, he gained a formidable physique;By capturing a ghost, he could turn invisible and pass through walls;By capturing a fox spirit, he could charm the opposite sex...In short, in order to obtain more powerful abilities, Wen Wen began to diligently capture monsters, thereby stepping into the strange world of superpowers and seeing the hidden truths behind the curtain...

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.

After a year of marriage, Jiang An finally accepted the fact that Dr. Gao did not love her and resolutely decided to divorce him, leaving the country. Unexpectedly, after the divorce, the seemingly aloof and ascetic Dr. Gao cried and begged for reconciliation at her doorstep every day.One day, Dr. Gao, drunk, forcefully kissed her and drunkenly confessed, “If I weren't afraid of someone else taking you away, would I have married you so quickly?”“Jiang An, I've never loved anyone, but I know I want to have everything about you.”A daily question: Did Dr. Gao remarry today?Flash marriage/Marriage before love/Pursuing wife drama/Remarrying battle