MTL - How Can the Saintess Be a Boy!? - v2 Chapter 5 When she first arrived at her house (crossed out), she must learn to adapt to another world

A young man sat on a chair and looked out at the ocean. With one wisp of Spirit Qi, he could point anywhere on this vast and expansive world, pointing at any place that didn’t look right.

“My name is Shun Satsujin. I'm an orphan… and someone who died only to be reborn into a world filled with fictional stories I once knew.”I expected a cheat ability—something powerful or overpowered. But all I got… was an intense exercise method called Herculess Method and a challenging life.Now, I'm just trying to survive and stay on track.That was the plan—until I enrolled in Shuchiin Academy.And suddenly, I found myself surrounded by girls from anime I used to watch.One by one, they started getting involved with me.

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.

-Includes mature content/2chps a day-Eizkel Rhyse, a 21-year-old who dies unexpectedly—only to be granted a second chance at life in a parallel world that closely resembles Earth. Gifted access to a mysterious golden interface called the Record, Eizkel can now track his attributes, develop skills, and receive “quests” with real-life consequences. Reborn as an 18-year-old university student, he must adapt to a new identity, unfamiliar surroundings, and the subtle chaos of everyday life.As Eizkel begins building relationships, he learns that a second life doesn’t need to be extraordinary to be meaningful. A story that blends heartfelt humor with introspective moments, highlighting the beauty of genuine connection, personal growth, and the chance to start over.With witty dialogue, emotional depth, and grounded slice-of-life charm, all about the rediscovery of oneself, finding comfort in the ordinary, and learning that the small things often matter most.