Hokuou Kizoku to Moukinzuma no Yukiguni Karigurashi - Chapter 117 — The Soldiers’ Window Logs

In his previous life, Tang Shi was a cannon fodder. For a jerk, he even turned down a blind date his father arranged for him, but finally died in the hands of his lover and half-blooded elder brother.

Before he died, his elder brother told him that the one that always went against him, teased him and used him as a bait was the one who truly loved him, also that blind date his father had arranged for him—Yan Xu.

Feeling regretful?

What would have happened if he hadn’t made that kind of choice from the very beginning?

Han Yang never thought he would one day sell himself into a marriage with another man. He believed his life would be mundane but that man, named HeLian Qing, broke his pre-planned life. Parental debt, a child’s compensation, he had no chance whatsoever to resist, he has no ability to resist.

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.

One will to create oceans. One will to summon the mulberry fields.

One will to slaughter countless devils. One will to eradicate innumerable immortals.

Only my will… is eternal.