A Mastermind? No, I'm just the Live-In Son-in-Law - Chapter 90: Beginner in Romance

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.

Galio, valiant reincarnate, is on his last life before he is allowed to take the hand of the beautiful Goddess, Tallia. Four hundred and ninety-nine lives worth of knowledge is given to him as a reward, along with the world he reincarnates to.

A world only known by women, where the concept of man had never existed, and the world is made up of twelve islands holding twelve primary races. These women have never known childbirth, periods, or the leer of a man.

Galio will enter this world filled with wonders that only men would ever dream about, but he has no memories. He will have to make his way, helping some along the way to help grow his Karma System.

Get ready for an R-rated journey of epic proportions and women of all shapes, races, breeds, and sizes! From Angels that moan heavenly melodies to the nine-foot-tall Amazons with weaves between their legs, and so much more!

The abyss has breached the real world, placing humanity in grave peril as the shadow of death looms over every individual.Only the Supreme Being can lead humanity to ultimate victory.For too long, humanity has awaited the arrival of the fourth Supreme Being!To become a Supreme Being, one must possess the highest level of talent. An “SSS-tier” talent, representing the pinnacle of power, is capable of advancing an entire era.Finally, a hundred years later, a young man named Mike awakened to an SSS-tier talent called the “Eyes of Truth.”These eyes can reveal hidden information and entries of anything, while also providing some bizarre hints.With the help of his SSS-tier talent, Mike, adopting the alias Thor in the Tower of Truth, continued to create miracles for humanity.As a newly risen Supreme Being, Mike had to conceal his identity before he fully matured. Thus, everyone considered him just an ordinary student, and no one knew that Mike was the legendary Thor.It wasn't until many years later, after humanity had defeated the invaders and restored order, that Mike could finally proudly say to those around him,“Just call me Thor.”

(This is a sweet love story anthology, don’t be fooled by the first story!). Bai Qiuyi has a curse on her body: if she does not take the antidote, her whole body will be as painful as if her bones were being scraped. And her antidote was a specific type of men’s semen.

—The full text is sweet, super sweet, and the sugar content exceeds the standard.