Married to My Ex-Fiancé's Cousin - Chapter 5 - The Favor I Owe Him_1

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.

While on a school field trip in the Czech Republic, Kang Hyuk happens to stumble into a shop called “Archmage.” To his disbelief, the shop is actually owned by an archmage… from another world! Forced to become the Archmage’s disciple, Kang Hyuk is punted into the Kallian Continent, where might and magic overwhelm and wyverns fly high in the sky…

In this world, people are either sword-wielding knights, magic-wielding mages, or spirit-wielding summoners. There hasn’t been anyone yet who can do all three… until now.

Sixteen years after Lu Yi traveled to the world of immortal cultivation, the long-lost golden finger finally awakened.

Goldfinger is a simple task panel. By accepting and completing tasks, you can get various rewards.

Lu Yi was surprised to find that the tasks he posted were counted as completing them himself?

So Lu Yi embarked on the road of no return where he issued a task to himself.

Issue the task to yourself [Practice the White Cloud Swordsmanship Ten Times], and the level of the White Cloud Swordsmanship will be +1 after completion.

Issue the quest [Defeat the Outer Sect Disciple] to yourself, and get the precious Perfect Qi Condensation Pill after completing it.

Issue the quest [Breakthrough to the Foundation Establishment Realm] to yourself, and get the best magic weapon after completing it.

…………

Unconsciously, Lu Yi discovered that even if he became a saint and an ancestor, it seemed that there was no difficulty in it?

- Description from novelbuddy

A door unfolded before him.Evil thrived, and whispers spilled from within.The resentful compound eyes flickered and vanished, the presence longing to burst out was blocked inside, and the alluring murmurs echoed in the ear.The sticky, pink brain mumbled something. A figure cloaked in a yellow robe watched from a distance. A dark green presence, smelling of blood, roared. A string of wondrous soap bubbles released friendliness—and many, many guests.They sincerely invited Lu Li to join this mad party.Lu Li stepped in, his stride resolute and unwavering.He had no reason to refuse.