MTL - Year of Herbs - Chapter 605 problem occurs

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.

One day, spatial tunnels opened in the very fabric of reality, connecting Earth to a planet that came to be known as Xavier, a planet that has a lot of deserted settlements belonging to the civilization that lived on this planet before we started exploring it.

Each settlement not only hides a secret of its own but also treasures, knowledge, and unthinkable technologies.

In this new world, magicians rule the world and make the rules.

They are those who can contain magic energy, an energy source present in Xavier, in their bodies.

This energy is used to mainly empower supernatural cells.

One can get them by consuming evolution materials.

These supernatural cells suck magic energy to manifest one's superpower in the real world.

Elliot, once the son of magicians in the channel opening stage, now lives the life of an orphaned and poor boy.

Elliot is the weakest magician to ever exist in the world, a world where the strong are respected and the weak are disdained.

With the death of his parents, the ones who used to look down on his has no reason to control their feeling.

With a dim fate ahead of him, he grits his teeth and silently moves on to the day the light of glory shines on him, setting him apart from others in a single day, letting him taste what it means to be God!

Kyoukai Senjou no Horizon chronicles the story of a futuristic civilization returned to Earth after constant warfare hindered them from traveling beyond the post-Apocalyptic Earth. At this stage, a small archipelago called the Divine States were the only hospitable land on Earth. In order to regain the space-faring technology they had lost after many years of war, they decided to recreate history with a book called the Testament as a guide.

It is the year 1648 in the Testament Era. Toori Aoi, Chancellor and Student Council President of the only academy on the airborne city-ship Musashi, faces the ten-year anniversary of the death of his childhood friend Horizon Ariadust in an accident. As he prepares to celebrate the occasion by proposing to P-01s (an automaton who looks exactly like Horizon) he discovers that his suspicion about P-01s’ appearance actually has a basis in truth; P-01s is in fact Horizon Ariadust, reborn into a robotic body. In addition to this, Horizon’s emotions had been stripped away and are now stored in eight powerful weapons called the Mortal Sin Armaments; which are now in the possession of key people in various established countries in the Divine States.

To retrieve the emotions of Horizon Ariadust, Toori Aoi along with his friends and allies begins a crusade against different obstacles as key events in history are recreated in a futuristic manner.

An 18-year-old poor college student tried to apply for a job as a tutor but his life almost ended as demons' meal. In his last breath, a mysterious woman gave him a strange power. When he opened his eyes he had turned into a demon with a system that would turn him into… A pervert.

Now he must lived with his dual identity as a model student named Ethan and an incubus named Damian.