The supporting character's harem is very normal - Chapter 242 Why are you crying?

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.

Kai’s life was small—coffee-stained mornings, cracked recipes, and a system in his head that tweaked toasters and dough like it was nothing. Then the sky shattered. Aliens—Skraiths, jagged and brutal—invaded, tearing his city apart with green-glowing weapons and relentless claws. Superhumans rose to fight back, fire and lightning blazing through the chaos, but Kai’s world crumbled with them.Hiding in his apartment, Kai stumbles on blood—human and alien, smeared on his wall after a superhuman battle. His system, once just a tinker’s tool, awakens, offering him a choice: mimic their powers, temporary and wild, through the blood itself. Desperate, he takes it—stealing pyrokinesis, then electrokinesis, then kinetic energy, each power burning through him, fading fast. But it’s not enough. Armed with a humming Skraith weapon and a body tougher from alien blood, Kai joins a ragtag crew of enhanced fighters—Liv, Rylan, Jace, and Tucker—scraping to survive in a warzone where every shadow hides death.As Skraiths swarm and the city burns, Kai’s system pushes him deeper, analyzing, integrating, crafting minor enhancements—durability, strength, sparks of power that could make him a target or a savior. Government factions, rogue scientists, and the aliens themselves start sniffing around, drawn to his strange tech and blood-stolen abilities. By the time Kai crafts his first super-powered enhancement—an artificial strength boost—he’s no longer just a tinkerer. He’s on the edge of something bigger, something dangerous, where blood and sparks could forge a hero—or break him entirely.In a world unraveling, Kai’s fight for survival becomes a desperate race to master his system, outrun the Skraiths, and confront the truth: the power he’s chasing might destroy him—or remake the world.

After Fang Ziyang died, he realized that he was the best male supporting character in a dog-blooded sweet pet article.
His always kind classmate is the protagonist of the book.
And his mature and rich father is the official partner of the family.
In the book, his eldest brother, father, fiance, and uncle all love each other very much, and they love each other and live happily all the way.
On the other hand, he targeted others everywhere, framed innocent people, and was finally kicked out of the house by his own father and killed by his brother himself.
Reborn until the day when fate turns to the abyss.
He is the vicious male protagonist in the school bullying incident, the full name of the public enemy that everyone spurns and crusades.
Fang Ziyang first took out his mobile phone and changed his Weibo name from “Fang Ziyang v” to “As Heaven Makes Local Babies V”.
And then… tweet.
[Zuotianzuoxiangbaov: Hello everyone, I’m Fang Ziyang. Of course, you can also call me the hero of the bullying incident in No. 1 China. In the past two days, everyone has been so hilarious, and scolded me until the green hat on my head is falling off. If you are as kind as me, I will do something for you. ——See you tomorrow night at 8pm, Orange Live. 】
Fang Ziyang smiled: Since I’m in a bad mood, let’s not sleep well.
#make heaven and earth, starting today. #

hint:
1. The Lord suffers, slaps the face and abuses the scum.
2. Let’s say it first, Xiaoshou’s mouth is more poisonous, and even the old attack is the kind of poisonous hahaha
3. With childbirth, the world sets same-sex marriage legal.

Content tags: wealthy family portable space rebirth sweet text
Search keywords: Protagonist: Fang Ziyang, Xie Zheng
One sentence introduction: Tear the protagonist by hand, turn over the cannon fodder
Purpose: to grow through training

- Description from novelbuddy

Xiao Yu transmigrated into an interstellar novel and became a mermaid Omega.
It’s just that he was unlucky, traveled to a desolate star that was about to be destroyed, and fell in love with the villain in the book.
what to do? I can get by, but how far can I go?
Ji Canghai was a five-star general admired by thousands of people, and also a notorious star thief. He is an invincible general on the battlefield and a nightmare for the enemy.
No one knew that this cold-blooded and merciless killing machine left the only softness in his heart to his little mermaid.
Due to genetic defects, the mermaid family will gradually become violent and eventually die without the help of mermaid Omega.
The mermaid race, which has not been born for hundreds of years, is miserable. Not to mention the shortened life expectancy, technology, culture, and mineral resources are also greatly restricted.
Xiao Yu, who came across time, became the mermaid’s only salvation by accident, and was also hated by the mermaid’s enemies.
When many forces are vying for him, only Ji Canghai will always stand by his side, never leaving him.
“Others look up to you and worship you because you are strong enough to protect or take their lives.”
“I am the only one in the world who loves you, not only because I yearn for your body.”

Content tags: Qiangqiang Interstellar Wearing Books Shuangwen
Search keywords: Protagonist: Xiao Yu ┃ Supporting role: Ji Canghai ┃ Others:

- Description from novelbuddy