VRMMO: My first Contractee is Yandere - Chapter 21: New Companion

In his previous life Bai Lang was a small star. He rejected his boss and stupidly engaged in a relationship which he thought was true love.

He didn’t expect that he would get betrayed, die of a heart attack and trouble his boss to accompany him on his last journey.

After his rebirth, he decided to give up on true love. As for his boss… since he wants something then just let him have it ba.

So this little star after his rebirth collected his boss, and then it became a true love story with his boss.

In between there are good friends/love rivals/scum men in the mix. A sweet story with a happy ending.

- Description from Novelupdates

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

Ye Yang, the 4th young master of the Ye cultivation clan, was once the weakest member of his family. His feeble cultivation and stagnant growth made him a target for bullying, and he was stripped of his chance to become clan head. While his peers surpassed him, reaching advanced stages like Qi Awakening and Meridian Opening Cultivation Stage, Ye Yang remained stuck at the 9th level of Body Tempering.Ashamed and defeated, he isolated himself from his family, refusing to meet anyone, including his mother Yu Mei and sisters Ye Ling and Ye Mu. Although his father saw him as a disgrace to the Ye family, he still tried to help Ye Yang overcome his limitations. In a desperate attempt to escape his misery, Ye Yang tried to end his life by cutting his wrist. But as he lay dying, a mysterious voice intervened:“If you don't want to live for yourself, then be mine and entertain me.”Ye Yang lost consciousness, only to awaken the next morning to a strange screen window:[Choice-based System][Welcome: Player Ye Yang]This marked the beginning of his transformation, as he embarked on a journey guided by the enigmatic System, confronting his dark past, and uncovering the secrets of his world.

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.