MTL - Reborn as a Good Child - Chapter 139 Unfortunately, he is a man.

[Warning: Mature Content -- R18][Initializing System…][Welcome Player: Jaxon Sterling][New Identity: Jax Rayne – Extra Character][System Bound: God-Tier Lewd System][Core Functions Unlocked]→ Stats (Stamina | Charm | Resolve | Technique | Luck)→ Skills | Shop | Quests | Achievements | Titles→ Devotion Points (DP) as Main ResourceHe was Earth’s greatest gamer, Jaxon Sterling. Unstoppable in every match, but utterly bored of life.One night, after mocking his sister’s strange “reverse-harem” game, he tried it out… only to wake up inside it.Now, he isn’t the hero.He isn’t a rival.He’s just an extra.Worse, the world he’s dropped into is twisted:Women are powerful, men are treated like pets.Every duel decides not just pride, but property, money… even flesh.The heroines? All from insanely rich families, with influence across nations.But Jax has one advantage[God-Tier Lewd System Activated.]A system that turns lust, devotion, and conquest into power.Every kiss, every moan, every conquest earns him the strength to rewrite this broken game.Now his path is set:Survive Starlight Academy.Conquer prodigy heroines.Break the rules of Aeroria.And rise from extra… to legend.Content Tags→ Smut / R18+→ Harem, Comedy, Action→ Game-Elements / Stats / Quests→ Genius MC, Cold-Headed, No Beta moves→ Slightly towards Netori (Mc stealing well using others wife)→ No Yuri→ No Netorase / Yaoi / BL→ System + Worldbuilding Driven

Mortimer Zhu is an extremely unfortunate high school student who accidentally enrolls into an academy of a dubious nature, where it is the norm to jump in front of moving trains, get dismembered during orientation, and crushed by vindictive bouncing classrooms. Can he stay alive or will he die from the rigors of school? Why have evil spirits suddenly acquired a taste for his flesh?

- Description from Novelupdates

With the descent of the first blood rain, the world underwent a dramatic transformation.Once bustling cities became playgrounds for zombies.Some people merely survive in this post-apocalyptic world, while others thrive using their strength in this new world.Opportunists are on the move, and lone wanderers roam the land.Firearms, artillery, superhumans, and mutated creatures drive the world in a new direction.Clove Russell is reborn at the dawn of the apocalypse, leveraging his Space Element superpower to unlock the genetic limits of the human body, dominating the post-apocalyptic world without rival.Linda: “This bastard has no feelings whatsoever, only using me to vent his desires!”Kelly: “He's so strong, so formidable!”Wendy: “I will conquer him! Clove conquers the world, and I will conquer Clove!”

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.