Strongest Demigod System - Chapter 104: Ungrateful

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.

Su-jin is a high school student whose life is filled with loneliness. Weighed down by school bullying, personal struggles, and isolation, she finds herself growing weary of everything. At that moment, a mysterious shadow enters her life—a man she only sees in her dreams, through his face remains hidden. Surprisingly, his influence extends beyond her dreams, shaping her into a stronger, braver, and happiest person.As time passes, Su-jin finds herself drawn to him, yet his presence brings more than just emotions—it leads her to extraordinary friendships and unexpected adventures.Among them is Yeong-ae, a skilled spy who enrolls in Su-jin's school to investigate the mysterious death of a girl named Ha-na. And then there is Jung-hee, a young detective who begins working as an undercover high school student on a major case. Along the way, she unexpectedly meets Su-jin, which gradually develops into a deep friendship.Day by day, Su-jin's life becomes like an adventure book; each page of which becomes an unfolding adventure filled with excitement, romance, secrets, challenges, and discoveries. But in the midst of this mystery, will she ever find the invisible man who stole her heart?

Fang Shen’s eyes undergo perplexing changes after being hit by thunder. The change helps him acquire inscrutable and powerful life-death eyes which are able to launch many functions like clairvoyance. With the superb and magical eyes, he can dominate the world.

- Description from Novelupdates

Ever since the appearance of the Tower of Genesis twenty years ago, children's dreams began to change. Becoming a Hunter became the most popular aspiration.The same was true for Nathan Cole. But unfortunately, the Tower had yet to summon him. The Awakening he longed for never came.Until one day, he was suddenly summoned into the Tower. He was overjoyed—but the happiness didn’t last long.Nathan had been summoned… because of a bug.