The Empress's No.1 Lackey - Chapter 689 - 458, Jianning 45 Days (7,000-Character Long - )_4

A cold and homophobic top matched with a person he hated on a dating app, and discovered that the other was even more clingy than he thought!

Everyone in the world had transmigrated to an alternate dimension overnight.Everyone here was a lord. They could choose their background and obtain a small yard and three farmers at the start.Lords needed to explore the maps and occupy territories to obtain resources, develop and expand, and conquer monster nests.They had to defend themselves against monster invasions and attacks from various factions to survive.Zong Shen awakened the strategy system at the start.There would be strategic information on everything he saw.The system helped him to find every hidden treasure.[The crooked tree 50 meters southeast of the territory is not as simple as it seems.][You will get a surprise if you walk 35 steps to the front and start digging.][Stop looking, this treasure chest is a trap. The poison gas within will knock you out for three days.]

Haruto Hayase was a normal high school boy in his third year, living a quiet life until his younger sister, Haruka Hayase, joined the same school. Haruka’s beauty and charm made her the center of attention, quickly becoming the school’s prima donna. But when a notorious gang leader set his sights on her, he did everything in his power to protect her—only to fail tragically. Haruka was brutally assaulted and tortured, and Haruto himself suffered an agonizing death. However, in a twist of fate, Haruto is given a second chance, waking up a year before the events that shattered his life. Armed with the mysterious ‘Debauchery System Slave’, he vows to exact revenge on those responsible. This time, he will use his newfound powers of the system and charm to seduce the loved ones of his enemies. From their mothers, sisters, and lovers to their closest friends, Haruto will make them his. His enemies will suffer as he steals what they hold dearest, ensuring their downfall in the most devastating way possible.

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.