Mr.CEO's Ex-wife Escapes Again - Chapter 60 - The Son Pays for the Fathers Debt

Arakawa Kouki is reincarnated to a Japan with a different history than the Japan he knows with the memories of his previous life still intact. Kouki was discouraged, “Aren’t reincarnation stories supposed to be at some fantasy world filled with swords, magic and elves?!”

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.

Orphaned at ten and betrayed by his guardian at nineteen, the protagonist's life spirals into darkness, yet some light remains, only to be cruelly extinguished when his girlfriend sacrifices herself during a brutal demon attack.As a result, he is bestowed with a mysterious system that imbues him with the strength, making him dedicate himself to eradicating demons.Upon defeating the Demon King, he is granted a reward and chooses to reincarnate into a novel-like world with sealed memories until age thirteen.Reborn as the second son of a Duke, he yearns a peaceful life and respite from his tumultuous past. However, fate has different plans.In a world full of political games and supernatural dangers, he finds himself caught in conflicts involving a transmigrator villain and a regressor protagonist.Amid noble family ties, surprising friendships, and veiled threats, he must find his way through this new life, all the while dealing with lingering scars and the chaos that threatens to engulf him and those around him.Can he truly find solace in a world determined to pull him back into the fight?Will he succeed in forging a relaxed and slow life amidst the relentless anomalies at every step?Read to find out!!

“First were the Gates, and now you’re saying the world has been invaded by Aliens and we’re soon going to be turned into livestock…? Great…”—----------------*Ding!*[You have awakened with the Idle Evolution System!]“The wha—”Suddenly thrown into a magical parallel world of the Earth he once knew, Cassius was greeted with powerful beings known as Hunters and the terrifying Gates that plagued the world. Moreover, he received a message…[To Idle, one must stay proactive!][Firstly, you require Character Development!]“Character Development…?”[You seem a bit (A lot) overweight, and you resemble that of a goblin! What say we start there!?]{[Daily Quest 1:]}_________________[Daily Quest - To Idle, one must stay proactive.]GOAL[INCOMPLETE] PUSH-UPS — [0/100][INCOMPLETE] SIT-UPS — [0/100][INCOMPLETE] CURL-UPS — [0/100][INCOMPLETE] SQUATS — [0/100][INCOMPLETE] RUNNING — [0/10km]REWARD - [1 Point in Charisma, 1 Point in Agility, 1 Point in Strength, and 1 Point in Endurance]_________________“Is this torture!?” shouted the ugly, obese transmigrator Cassius.*Ding!*[No, it’s Character Development! ^-^]—----------------100 years ago, Earth was suddenly overwhelmed with the appearance of Gates and the horrifying monsters within those mystical portals. That was the First Major Calamity.Now, one hundred years later, the next major calamity has arrived—the subtle invasion of an Ancient Alien species from deep into the Milky Way Galaxy. Its undercurrents spread far and wide, with the threat an apocalyptic one. Yet, that is but the 2nd of Three Major Calamities as per prophesied by the famed prophet, Baba Yaga.The Third Calamity, and the most dangerous of the Calamities, is one that will bring about the true END of the world, but only if the Second Calamity can be overcome by humanity…What does this Third Calamity detail, one might ask…? To know the answer to that, one would have to brave past the first Two Calamities and stare into the abyss, praying to all Gods known to man that the Abyss does not stare back also into you…