The Martial Emperor with Dragon Blood - Chapter 83 - I’ll Never Leave You

[The Demon King is Dead], a story in which the Demon King got immediately killed in the Prologue. I became the ‘Demon Prince’ of said novel.

…Help me.

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.

In the spirit of love and in order to help his ex-boyfriends walk out from the shadow of heartbreak, every time before Ye Ming leaves after successfully completing each world’s romance mission, he will ‘kindly’ (ruthlessly) break up with with his boyfriend.

After transmigrating to N different worlds he had finally gained enough experience. At this time the system informed him that because the accumulation of his ex-boyfriend’s grievances had exceeded critical levels, leading to the failure of all his missions…. So he needs to return to each world to eliminate their grievances if he wants to complete his missions!

Ye Ming: This is an outcome I didn’t predict.

System: I tried to tell you before that if you did this you won’t have a good end.

The ex-boyfriends all laughing coldly: He He. That despicable scum that ran away after deceiving my feelings is finally back. This time don’t even think about running away!

Ye Ming: ……

System: Since you “zuo” yourself to death, even if you kneel you have to go to the end!

Ye Ming: Luckily I have a special “scum cleaning” technique ^_^

- Description from Novelupdates

Journey through a Sim World for All.

Every young person is given a chance to simulate reincarnation when they come of age.

Only by breaking the limits of life can one have the opportunity to become a permanent reincarnator who controls everything.

If it fails.

In this life, I can only be an ordinary person praying for blessings.

Countless candidates are trembling, not daring to make the slightest mistake at the beginning of the simulation.

And after Li Yueming entered the reincarnation world.

Discovered that your random talent can be multiplied by a hundred times?

[Your blue talent ‘Aura’ has been transformed into a golden talent ‘Infinite Deduction’ after a hundred-fold increase]

[Unlimited deduction (golden): You can deduce based on known information, the accuracy rate is as high as 100%! 】

With the emergence of full-level talents one after another.

Li Yueming suddenly discovered that this is the reincarnation world known as the difficulty of hell?

Questionnaire or something, next time I will fill it out very simple!

- Description from novelbuddy