Global Game: I, the Necromancer, am the scourge - Chapter 11 - : Mutated Strengthening Skill "Death Shadow Arrow

It has been more than ten years since he was transported to another world. The protagonist Deris Fahrenheit, who has became a magician with special circumstances, was freely enjoying his life in this world. However, a girl appeared before him and asked him to make her his disciple. That girl seems to be a transported person――

It’s a story of him who becomes the girl’s teacher and trains her to achieve her revenge (?) in otherworld.

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.

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

Lin Mu rescued a Samoyed.

Capable of eating, smiling, has a high IQ. Picks up anything you teach him quickly, a good helper around the house.

The only thing was that he doesn’t bark nor wag his tail.

Lin Mu took a ham sausage and coaxed for the thousandth time, “wag your tail, and this ham sausage is yours to eat.”

The Samoyed raised his eyes impatiently, and with a single shake of his tail, shook out nine.

Lin Mu: …… F*ck.

Afterwards, the fox that did not wish to reveal his name, Mr. Yan Xuanjing, said in an interview: “Now I regret, I deeply regret. At that time, I shouldn’t have pretended to be a dog to take advantage of him, shouldn’t have touched him, rubbed against him, eaten his food and slept in his bed. Now I have a home that I can’t return to and a wife I can’t sleep with, I regret, deeply regret.”

A learned and easy-going professional grudge-bearing Shou x A certain nine-tailed fox who refuses to say his name and was forced to go to the mortal realm without money Gong

- Description from Novelupdates