MTL - My Star Wife is From Myriad Realms - Chapter 9

Transmigrating to a lawless person and then directly upgrading to a little brat’s stepmother. Xiao Ting said, “Crap, there’s no need to even give birth to a child. God, I love you so much …”

- Description from Novelupdates

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.

Warning: This work contains elements of mature content featuring sex, violence, and gore.

Follow the journey of a wandering drunk swordsman who will punch immortals, kick demons, and cut down gods as he ascends the heavens in search of better women and wine.... hic...

Women, Wine, and Wager

The three most terrible vices a man could possess. Luckily, Duncan was only afflicted with two - women & wine. As an ordinary spirit stone miner, Duncan only cared about earning money to indulge in his two vices.

However, Duncan's fate had a twist in the form of a cantankerous old man who wanted to both reward and punish him in good measure. It leaves Duncan with a rather poor opinion of cultivators in general.

Pulled into the world of cultivation unwittingly, Duncan only cares for three things. His sword, his wine, and his women.

*Celeb: short for celebrity.A dull body, a timid and kind personality.The fat princess who was ostracized, Rubetria Diollus.“Oh my, the princess is at the dessert shop every time I see her. She eats so many sweets, enough to make one’s cheeks burst, no wonder she gets fat.”Princess Lillia, the ‘swan princess’ of the family, was always surrounded by friends, and Rubetria, the ‘ugly duckling’ who was bullied by them, was a loner.“Hey, you idiot. Our princess is angry. Eat it, quickly.”“Puhaha…!”“Oh my god! She really ate that!”Rubetria was tired of the bullying.Then one day, she said,‘I want to live a wonderful life like that woman for just one day.’180 degrees change.