Empress of the Entertainment World - Chapter 335 Cornered

Qin Lin was electrocuted by playing a nostalgic “Ranch Story” game, and suddenly gained the ability to enter the game. He also found that he could bring the watermelons grown in the game out of reality.

At first, he calculated that a pound of watermelon would sell for 2 yuan. As long as he sells 10,000 catties of watermelon seeds in the game, he can earn 20,000 yuan a day.

Later, he discovered that by upgrading pastures, he could obtain advanced crops beyond the world, raising livestock to obtain advanced livestock breeds that were far beyond the world, and building factories to obtain various formulas that were far beyond the world, and everything was different.

- Description from novelbuddy

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.

[Additional tag: GL, Yuri, Only Wholesome romance, Harem, Slow romance, Academy, Fluff, Lighthearted, Overpowered Protagonist and Love Interest][Update Daily]Seven Witches. Seven Sins. Mel always found the apocalyptic Gacha World of the 'Witchhunter's Howl' quirky and confusing. The Tragic Witches. The over-powered Saintess. The Bad Ending. And the twelve thousand Dollar she spent on pulling PNG waifus. Really, another salary emptied? Aw, she still hasn’t bought the new, limited merch yet!But now, transmigrated back to the world 15 years before the apocalypse, Mel had a new mission: as the Witch of Lust, she had to seduce the six other witches, plus the Saintess, to prevent the end of everything.Now if only the Kingdom would stop mistaking her for a terrorist, her childhood friend-turned-lover Envy would chill on the yandere vibes, and the Saintess wouldn’t tease her every chance she got...“Ah... I want Miss Pride to be my chair at my tea party...” Mel sighed, just another normal thought on another not-so-normal day.

After Gu Jinghe passed through the book, she became a cold and ruthless overlord. The system asked her to abuse her heart and body against the poor heroine, and the world was broken.
The heroine is both beautiful and miserable, Gu Jinghe couldn’t bear it, and decided to put on another vest to secretly compensate her.
She seamlessly switches between old and new identities, and lives like a genius every day.
When she was the overlord, she looked cold and stern, with a mocking smile on her lips, and her fingers raised the heroine’s chin: “Ji Yunyan, the fate of the Ji family is in my hands, you’d better be obedient.”
In her new identity, she smiled brightly, and her voice was sweet and soft: “Yanyan, can I go to your house to do my homework?”
Probably because of her superb acting skills, the heroine treats her with a cold face as the domineering boss, and smiles like a flower at her new identity.
Until one day, when Gu Jinghe routinely confronted Ji Yunyan as the boss, Tian Liang Ji Po, Ji Yunyan suddenly called out her vest name to her.
Gu Jinghe agreed…
Gu Jinghe: Why don’t you listen to my explanation?
Ji Yunyan: (smiling) Make it up, keep making it up.
[The story of two people who thought they were straight but were not so straight flirted with each other, and ended up breaking themselves completely]
(The cover is the persona of Mr. Jing Heba)
Ba Zong and Jiaojiao seamlessly switch between the superb acting skills of Shou vs. the attack of the disguised little white flower

Content tags: system sweet text wear book
Search keywords: Protagonist: Gu Jinghe ┃ Supporting role: Ji Yunyan ┃ Others: Chuanshu, Overlord, Actress
One sentence introduction: I fell off the horse in front of the heroine
Intention: No matter what difficulties you face, you must stick to your own nature and not fall into darkness. the

- Description from novelbuddy