My Genius Sister is Only Seven!? - Chapter 142 - Being Spanked

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.

Introduction to One Piece’s Bounty System: Tianlei crossed the One Piece World and become the nephew of the Navy Admiral ‘Sakazuki, ‘Akainu’, Tian Lei thought it was very outrageous until he found himself having a [bounty system] that can be exchanged for everything in the world of One Piece. As long as you kill or capture pirates, you can draw a Skills, weapons, and devil fruits. Such as ‘Navy Six-style’ ‘Overlord color Haki (Busoshoku Haki)’ ‘sense color Haki (Kenbunshoku Haki) ”armed color Haki’ ‘devil fruit’ ‘sword skills’ have everything!

- Description from Novelupdates

After the divorce, I amazed the world with my child.Forced into marriage, Ning Yichu always thought that Li Linyang hated her as his wife, until one night when he got drunk and cornered her with red eyes, “Ning Yichu? The one I damn well want is Ning Yichu!”Ning Yichu believed it to be true and sweetly managed their marriage, only to be met with a divorce agreement.Five years later, she returns gloriously with a new book “The Years My Ex-husband Couldn't”, alongside a pair of genius twins. She effortlessly navigates the jewelry world, becoming a top-notch jade carving artist, winning awards left and right. Countless socialites are willing to spend extravagantly for her work, causing a sensation online.What? The green tea is sick and dying, wanting her help? No way!What? The scumbag ex-husband is kneeling at the door begging for reconciliation? Let him go.But what's with this scumbag ex-husband? She finally found a tall, rich, and handsome man to be the stepdad for her kids, yet this bastard keeps causing trouble every day!“Wife, today you held Mo Boyou's hand once, met him seven times, spoke 327 words with him!”“Go away, we already divorced. Next, I'm not only going to hold his hand, meet, and speak with him, but also hug, kiss, and walk into the hall of marriage...”The scumbag ex-husband rages, veins popping.She thought he was going to hit her, but instead, he turned and stuffed a cute little girl into her arms, saying pitifully, “Wife, I was wrong. Our daughter cannot live without mommy. Please give me another chance!”The adorable little girl looks on pitifully, “Mommy, please love, please caress, please don't abandon me!”OMG! When did you steal one of my babies?

Collecting legendary antiques, retracing the mysterious martial arts. From the moment he activated his cheat, Casio knew that he was no longer ordinary.[Legendary Antiques: Wind Elephant Ivory Pendant]Seventy years ago, in the North Flow Country of the Hong Li Federation, at the Wind Elephant Gate Youth Training Camp.“Li Wei, you are a coward! On the day your sister was brutally murdered, you were trembling in a corner! On the night of the Sect Destruction War, you disgracefully fled! During the many long years of revenge, you missed the opportunity again and again!”“Now let me teach you what bravery is, let me tell you how to turn suffering into your power. I hope at the moment you behead your enemy, you will remember: you are a man, an upright man!”The taboo era, hidden legends. A Foggy continent paralyzed by the sealed land. Countless brilliant antiquities wail in the ruins.I will witness your lost legends in the mist, the knights in the sky, the ghosts in the desert, the rats in the mud. The direction of sword fights points to the light, and flowers will grow where bullets fall. The winds of history will eventually sweep away the rubbish from the era's gravesite.