Dungeon of Niflheim - Chapter 33

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.

Once a young business prodigy, Violetta’s company crumbled fast thanks to internal corruption and the greed of the more successful elites.Now, she’s a certified 31 year old dirt-poor shut-in, living her best (or worst?) life as a full-fledged otaku.With nothing but her anime merch and a shaky Wi-Fi connection, she scrapes by on streaming money, all while dodging the harsh reality outside her door.However, after an all-nighter to play Merlysian Realm, a newly released VR MMORPG, she died from her unhealthy lifestyle and passed out.[SYSTEM ERROR: 404 - ACCOUNT NOT FOUND][Rebooting...][Loading...[ERROR: SYSTEM MALFUNCTION. PLEASE WAIT.].....[SYSTEM MESSAGE][You Have Received A Legendary Class][User's account balance has been updated.][Balance: UNLIMITED][Class: Merchant][Rank: SSS]“Huh?!”Not only was she transmigrated into Merlysian Realms, she was reborn in a struggling farmer's family that lived in poverty from a poorly developed kingdom in medieval times!The real kicker? It’s crawling with corrupt nobles, dying crops, zero trade routes, and is so tiny it could probably fit on a map as a dot labeled “Who Knows Where.”Can our otaku-turned-financial wizard save this sinking ship of a kingdom, or is she doomed to relive her bankrupt nightmares?Watch as she proves those who doubted her to be wrong and be accepted as a genius by using her knowledge from the modern world!

[BL] To pay off his debt, Lim Garam decided to debut as an idol under the entertainment company that belongs to the loan shark he owes. But the contract he signed wasn't a business contract. It was a marriage contract with Song Sihyuk--- the Alpha among the Alphas, and a third-generation chaebol at that.Lim Garam is a Beta, so he never understood Song Sihyuk's obsession with him.But maybe he should have known the moment his contract husband asked him THAT question:“Do you want me to turn you into an Omega, Lim Garam?”***#omegaverse #betaxalpha #omegaxalpha #sassybeta #suddenlyomega #redflagalpha #toxicrelationship #secretmarriage #showbiz #idol #chaebol #ceo

A software engineer in his original world, Wayne enters the Chosen Land as a third-rate detective, running an agency on the verge of bankruptcy with nothing but potatoes filling his stomach. Just as he’s getting tired of potatoes, though, fate comes knocking in the form of a pretty girl, a burly man, and a cat. He’s led into a brand new world within this world, which is already foreign to him. Thus begins his adventure of intrigues and mysteries, with a healthy dose of misunderstandings and other shenanigans.Official Blurb:Morning. The light of dawn arrived late, and the lingering radiance of the sun had already faded into darkness. In the city covered in a thin layer of mist, in the church hidden in shadows, in the veins crawling along the walls, amid the noises of gnawing and the whispering silhouettes… a lone figure walked with a lantern.