Sis-Con with Dimensional Chat Group - Chapter 2174: Three at the same time

“Who knew the key to surviving a deadly island was... well, charm? Guess I’ve got a superpower after all.” – Lucas Carter.When a school field trip takes a disastrous turn, Lucas Carter and his classmates find themselves stranded on a remote, uncharted island. With no rescue in sight and the wilds teeming with danger, survival becomes a brutal challenge. But when Lucas awakens the Harem Survival System, everything changes.The system is as bizarre as it is powerful: for every woman Lucas seduces, he gains extraordinary survival skills and critical resources.From hunting and crafting to strategic foresight, each intimate connection gives him the tools to outwit the island’s many threats.As Lucas grows stronger and more capable, the dynamics among his classmates shift.Friendships turn into alliances, jealousy brews in the shadows, and the boundaries between survival and desire blur.Meanwhile, the island itself hides secrets far more dangerous than its untamed wilderness.

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.

Shaymon, the man who has achieved the apex of dark magic, is framed as being a Demon King and is killed.

Once the ultimate Soldier King and a supreme assassin, empowered by a magical Magic Bracelet, had mastered Cultivation, Medical Skill, X-ray vision, and foreseeing the future… became an omnipotent master of pretense. Come, come, come, watch the omnipotent master of pretense teach you a few tricks of pretense.A demonic man who walked out of a major foreign prison, yet married a cold Queen-like CEO wife, leading a life where “you glare at me with displeasure, and I look at you with disdain.”