MTL - Mysterious Young Master, Super Cool - v1000 Chapter 3672 That's my sister, my only sister!

Traveling to an overhead urban world where martial arts and immortal arts coexist, the only thing Lin Shen can rely on is the avatar Golden Finger.

Cultivate in avatar, the main body becomes stronger.

Clone [Pure Yang Body]: Yang attribute skills training speed +300%, Blazing Sun Palm, Melting Soldiers Hand, Qianyang Sword Art… Any Yang attribute skills can be easily mastered, and a thousand miles a day!

Clone [Natural Dao Body]: Practice speed +500%, all martial arts skills can be understood at a glance, mastered, and crushed all geniuses!

Clone [Sword God Wuwo]: The power of swordsmanship skills +200%, the speed of swordsmanship skills training +200%, let you be tyrannical, I will kill you with one sword!

 …

“You never know how many avatars are working hard behind the person chatting with you in front of you!”

“The avatar did it, what does it have to do with my body?”

“What I’m most afraid of is that others will bully the few with the more, anyway, not as many as me!”

- Description from novelbuddy

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.

[Invincible, showoff, face-slapping, feelgood]“Who is richer? Sorry, Every watch I have is worth billions. Money is just a number to me!”“Wanna fight? Fine, I won't even use my hands and feet. I've never lost a fight in my life!”“You like me? Sorry, even a cruise ship is not big enough to hold all the women I have. Haven't you seen the princess of Anenida lining up for me?”With the invincible system, everything can be easily accomplished.Please don't show off in front of me. I have a nickname called Face-slapping Zhang!

Quinn Winter is a young man from another world. One day, he is suddenly chosen to become the new Demon King. But the Demon Kingdom is in big trouble – it's losing a terrible war against the human kingdom called Gran'le.To help his people, Quinn comes up with a risky plan. He will sneak into Gran'le and learn their secrets. But things don’t go as planned. A powerful noble sponsors him, and he ends up joining Heavenward Academy, the top school for training future heroes.At the Academy, there's a big challenge called the Selection. The best students become Paladins – magic knights who fight demons. Quinn doesn’t want to become a Paladin. He is a demon king! But now, he’s stuck in the Selection… and if he wins, he’ll become the very thing he’s supposed to destroy.He started the day badly. Now, things are getting even worse.