Gacha Harem System - Chapter 31: Green Forest

The mortal body, metamorphosis, longevity, immortality, and eternal life. These five realms, step by step, reveal themselves in front of you. As a normal person, how can one try step by step to reach and open the door to eternal life?

Between the heaven and the earth lies the mortal body, the mysteries of metamorphosis, freedom of longevity, the power of immortality, and the hope of eternal life. A story filled with endless new magic, a new world of immortal styles, people, demons, gods, fairies, magic, kings and emperors. A world of love and hatred, revenge, and mystical battle, all in “Eternal Life.”

- Description from Novelupdates

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.

I fell into a wannabe murim.But apparently martial arts is supposed to be difficult?Hm… Is it really that bad?

They hunted my kind for extinction but I came back as their nightmaresnon human mcDarian once the strongest Dragon Knight in the Empire, died protecting the last dragon from extinction. Betrayed by his comrades and burned alive by holy fire, he vowed vengeance with his last breath.But the gods answered—with a curse and a gift.Darian reincarnates hundreds of years later... as the last dragon egg hidden in a cave deep beneath the earth.Now, inside a fragile shell, he remembers everything. The betrayal. The genocide. The lies told by the human kingdoms. And as his body slowly grows, so does the power of ancient draconic magic—and the System embedded into his very soul.> [Draconic Evolution System Activated]Choose Your ElementUnlock Ancient MemoriesDevour Magic Sources to Accelerate GrowthHatch When Power is ReadyHe must hide from dragon hunters, manipulate desperate adventurers, and absorb mana from the dying world to hatch once more—stronger, darker, and more terrifying than ever.And when he emerges?> The world that burned him will feel true fire.