The Regressed Blood Knight's Strategy - Chapter 8

As Shin Youngwoo has had an unfortunate life and is now stuck carrying bricks on construction sites. He even had to do labor in the VR game, Satisfy!

Gu Nianshen had thought all along that he was raped by an older lady five years ago when he got really drunk at a nightclub. When he met a child who resembled him and Lin Yiqian, he carried the child in his arms.

“Where is your Mommy?” He asked. Calmly, the child pointed a finger at the screen of his phone.

“There. She’s performing at a concert.” Coincidentally, the screen was displaying how a wealthy fan gifted the female singer on stage with 999 roses.

Gu Nianshen’s facial expression turned spiteful as he gave his secretary an order. “Give Lin Yiqian a call. Tell her that her son has been kidnapped. She will have to turn herself in to get him in return.”

“Bad guy…” Before the child could finish uttering his sentence, his biological father had placed a hand over his mouth. “You are being kidnapped!” Gu Nianshen fumed.

- Description from Novelupdates

Keita Sumeragi was a man of dreams—once a hopeful mangaka who poured his soul into heartfelt tales of romance, comedy, and friendship. But the world never smiled back. Readers ignored him. Publishers laughed. And when the only offer he got was to draw the one thing he hated—NTR (Netorare)—he refused.Until life left him no choice.His wife walked out. His daughter starved. And when his first NTR manuscript was complete, the publisher gave the job to someone else.Broken, guilty, and hollow, Keita leapt from the rooftop with a bitter smile—Only to awaken in the world of his own rejected NTR manga.In this twisted realm, he’s reborn as the main protagonist—handsome, popular, and surrounded by women with all-too-familiar faces. His sweet and kind “motherly” wife resembles the wife who left him. His seductive stepsister has the same eyes as his daughter once did.In this warped erotic hell, where anyone can be seduced—teachers, aunts, even grandmothers—Keita must face his deepest guilt, his darkest fantasies, and the genre he once despised.Because in this world, NTR is fate.And the story must go on.

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.