Re-Overlord: I Can Acquire Anything! - Chapter 49: Improvement

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.

【Exhilarating】【New Ultimate Path Plus Points】【Dry Humor】 The world plummets; who shall uphold the heavens? Demons spawn from earth and sky, the Taoist stands valiant and resolute. I am Yi Chen, ’Chen’ as in dust, styled Yi Chengzi, eighteen years old, fearful of violent evil spirits, fond of making money. With a cold heart and ruthless hands, he transmigrated to a bizarre world where goblins and malevolent spirits dwell, becoming the eldest senior brother of the Hidden Dragon Pavilion, and as his master lay dying, he entrusted Yi Chengzi with the duty to uphold the path of benevolence and righteousness, to take good care of his younger Taoist brothers; he promised he would. However, his understanding of the path of benevolence and righteousness differed slightly from that of his master. What is benevolence? Slicing evil men and ghosts in half is benevolence. What is righteousness? Smashing the heads of evil men and ghosts into their chests completes righteousness. After his master’s death, unable to awaken ’spiritual essence’ for cultivation, he set upon an unorthodox path of cultivation with the help of the Golden Finger. Facing the wolves eager for a fight after his master’s demise, he struck with heavy fists, understanding the true essence of righteousness. Confronting the malevolent spirits that stood in his way, he naturally reformed them with the iron fists of love. He slew demons, exorcised evil, and tested his sword against various spiritual cultivators, enjoying the landscapes of the world. When he reached the summit and looked around, he was shocked to find that demons were but minor afflictions and that this land and sky were falling... A millennium-long scheme, an eternal enigma, slowly unveiled itself. Strange, it has arrived, and it does not die or perish. Witnessing this scene, Yi Chen laughed. Even the malevolent dogs passing by his Taoist abode had to endure a couple of slaps; how dare someone be so disrespectful to him? Yi Taoist stomped one foot and soared into the heavens! The onlookers exclaimed in shock, “Taoist, stop fighting, the great ’Dao’ is nearly worn away!”

When I woke up after being transported to another world, I am suddenly the antagonist? This script is wrong! I stole the other guy’s girl! I also have a super strong big sister! This script is even more wrong! There’s even an Overgod Space, along with the infinite worlds? I must be dreaming! Wu Ming calmly maintains his neutral expression and journeys ever onwards.

After getting forcefully reincarnated into a world of an otome game he has no clue about, the protagonist is then killed and brought back to life by the prideful villainess with one desire.

To rule the world.

As the ruthless girl’s Eternal Servant, how will he dodge the fate that the game system has in store for him?