The Strongest Body Customization System - Chapter 113: Chaos Sea

Adrien’s tale is a thunderous symphony of vengeance, mystery, and ascension. Awakened with no memory but wielding a shadow-forged blade, he traverses a fractured world where gods rule through fear and silence. His forgotten blood burns with the legacy of the Godslayers—beings once feared even by the divine. As he hunts corrupted gods and unearths shards of unimaginable power, Adrien evolves from a wandering enigma to a force capable of defying fate itself. Twisting through betrayal, hidden empires, and awakening legends, his journey is not just one of survival, but of reclaiming divinity to break the sky itself.

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.

David thought he would live a normal life when he awakened the banking system at the age of 18.However, fate seemed to have something else in store for him as his life turned upside down when following the death of one of his loyal client, a shiny window popped up in front of him.[Regretfully! You lost one of your clients today. However, the Bank of Eternal Origin can never suffer a loss.Even if he died, the client will have to pay back somehow, therefore his soul was captured. You now have the following options, keep in mind that you can only choose one.1 - Extract Client's Crystallion of Life (Money Talks, Grade - Uncommon)2 - Extract Bryan's memories from his birth till his death.3 - Any item that client owned in his lifetime.4- Do Nothing, let the compound interest do its thing and decide again when the Client dies in his next life.Please note as capturing the soul and imprisoning it requires a large amount of mana because of which you only have two hours left to make a choice.]

When people pass away, they often leave behind unfulfilled wishes. I will act as a force of justice, helping the deceased achieve their final desires before I return to my own world to confront and make peace with my own regrets.