MTL - Reborn In the Tokyo Bubble Era - Chapter 457 Madden Insider

Ajax used to coast through life before his parents died, after that he focused hard to try get his life back on track but that wasn't really happening and it all ended the day he got mugged. Given a second chance at life he now looks to become someone who matters and is willing to work hard from the beginning to make that happen.

The Great Yan Empire exists in a world where respect can only be earned through strength. Within this Great Yan Empire, the four great clans have always stood above the rest. Among them, a particular incident in the Lin Clan resulted in the banishment of a certain individual who went on to start his own family, in hopes of one day being recognized again by the Lin Clan, and rejoining them…

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 facing her fiancé’s betrayal, things take an unexpected turn after Tang Mo’er inadvertently gets involved with the Capital’s preeminent magnate, Gu Mohan.

Fast-forwarding, Tang Mo’er clenches on a pregnancy test kit with two red lines—testing positive—and confronts him. “Young Master Gu, why did you make me pregnant?”

Gu Mohan hands a baby over into her arms. “My dearest wife, be good. That’s our second child.”

And so Tang Mo’er can only hustle and take care of her two children, but unbeknownst to her, Young Master Gu has also been coveting her love and affection…

This is a face-smacking, sweet-love novel set in the entertainment industry.

- Description from Novelupdates