In Another World I Become a Healer With Purple Hair - Chapter 3

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 death, Gu Jin realized the child, whom she had fed only once in the past, was the only person who gave her proper burial and avenged her by any means. Once she’s reborn, she found him when he was being bullied. And despite objections, Gu Jin took this malnourished child under her care with help from the dimension in her possession. However, never did she expect she would lead him astray...Many years later, Gu Jin can’t help gritting her teeth as she is watching the elegant and handsome man on TV. He has grown up to be a successful and powerful businessman who is outwardly kind but inwardly ruthless. Most unexpectedly, he has turned into a man who is domineering and protective of her.

Kota Sakamoto—virgin weeb, social reject, and hentai game addict—gets sucked into a perverted dungeon world straight out of Carnal Labyrinth EX, the 18+ erotic strategy game he secretly 100%-cleared.The catch?All eight of his hot classmates and their strict MILF teacher got dragged in with him.The other catch?They hate his guts.Worse still, this dungeon world is exactly like the game—every level a twisted, orgasm-fueled survival puzzle where failure means death by overstimulation, lust-monsters, or trap-triggered climaxes that literally drain your soul.He’s the only one who knows how to survive.They either listen to the virgin... or moan themselves to death.Bondage plants, lewd slime traps, fetish trials, and orgasm boss fights await—and the only way forward is obedience.What starts as reluctant cooperation turns into obsession, as each girl slowly falls for the boy they once mocked...…the virgin who’s now their dungeon master.

Jiang Tong was a person who had no tomorrow. She was stuck in an endless loop, repeating the same day, 4th April of the year 2022. From the initial excitement up until despair, Jiang Tong had tried everything to escape. She killed herself countless times, using different methods, but she would always wake up on the day of 4th April 2022. To pass her unlimited time, she learned more than a thousand and three hundred skills. From languages, to shooting skills, culinary skills, performing arts, etc. Jiang Tong learned everything imaginable. She enjoyed the excitement and hotblooded fights brought about by wrestling; she enjoyed the speed and thrill brought about by car racing; the pleasure of seducing and tasting all kinds of handsome men; the therapeutic sensations of playing various instruments.

No matter how much trouble she got into, when it got to four in the morning, she would suddenly fall asleep and wake up on the morning of 4th April. Until… After countless trials and errors, she finally managed to bed Z City’s most dignified but also the weakest young master, Ji Lanzhou. Ji Lanzhou was the Ji family’s youngest young master. Due to his frail body, he was the apple of the Ji family’s eye. No one in Z City dared to mess with him. But Jiang Tong didn’t care because she would have to relive this day again tomorrow. Yet… When dawn came, Jiang Tong was shocked to find Ji Lanzhou sleeping on her bed when she opened her eyes. The man even looked pale from having overexerted himself. Jiang Tong was delighted! She looked at her phone, and the date showed 5th April, 2022! After five hundred years, more than a hundred and eighty days, she was finally out of the loop! Ji Lanzhou woke up to see Jiang Tong laughing and crying like a mad woman. He pursed his pale lips and said, “Liar.” Jiang Tong raised an eyebrow. “It was an accident, Sweetie. So now I have to run for my life.” Ji Lanzhou was baffled.