Longevity Clan Starts with the Patriarch’s Marriage - Chapter 391 - 198: The Evolution of Time-Sky Tower, Supreme Grade Imperial Arms! White Emperor City’s Zimiao Zhen! The Empress has given birth to a child?_3

An AI calling itself Schema has assimilated earth into its system. As a consequence, everyone gained access to status screens, power-ups, and skills. This AI turned these concepts from fiction to fact. It's easy to become intoxicated with leveling up and becoming stronger. To some, it's too good to be true like living out a dream.

For Daniel, however, it's closer to a nightmare.

He's in a bit of a predicament. Cracks in our dimensional fabric have unleashed terrifying beasts from dark, abyssal places. Schema organizes these cracks into dungeons, giving the native species of the planet a chance to fight back. Daniel finds himself trapped in one of these dungeons. Not long after, he discovers there's only one way out.

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.

[The omnipotent full-level boss vs the doting wife Wudu Zhenguo general]

The modern cultivator Chu Qingzhi went down to earth to experience the tribulation of love, and was forced to lean on the body of an ancient peasant girl.

There are eight children in the little girl’s family, and she has a total of nine, so she has to shoulder the burden of supporting the family.

Exercising the art of beast control, subdued the tiger as the mount, the black bear as the main force, the wolf as the helper, and the monkey as the pathfinder, and went hunting together.

Cloth ice formations, make ice cream, and sell them all over the streets.

Planting herbs in the way of medicine, asking for diagnosis and treatment, rubbing pills, attracted princes and nobles to scramble for her, and even the emperor called her a lady.

In order to become a fairy, she supported her family while starting the road to find her husband.

…

The poorest family in the village, since they took back their daughter, everyone thought that life would become more and more difficult. Unexpectedly, after a period of time, they were building houses and buying land…

This is not the daughter who was taken back, this is the God of Wealth!

…

The general of Zhenguo, who even refused to marry the princess, went back to his hometown to recuperate for a while, and then suddenly got married. He married a little peasant girl.

While everyone was waiting to see the joke, dignitaries came to visit one after another.

The queen mother took Chu Qingzhi’s hand, “Qingzhi, how about I recognize you as my younger sister?”

The emperor looked at Chu Qingzhi with satisfaction, “Madam, would you like to be an official in the court?”

The little prince grabbed Chu Qingzhi’s clothes, “Sister Qingzhi, I want to eat ice cream.”

- Description from novelbuddy

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.