Kujibiki Tokushou: Musou Hāremu ken - Chapter 277

Male lead quick transmigration romance— originally called Soul Pawn Shop.

Hell’s ruler Xie Fei travelled through three thousand worlds to guide traders to redemption.

—Ding-dong! Welcome to the Soul Pawn Shop.

Note: 1V1 romance

- Description from Novelupdates

He said coolly: “One million a month, stay with me!” She raised her eyebrows and smiled: “Pay a 30% deposit first, no credit!” Show no mercy. When the contract expired, she turned around gracefully, and when he chased after her, she found that there was already a kid the size of a kid beside her…

- Description from novelbuddy

He Yu suffers from Omega pheromone disorder.
Not only does his pheromone not attract Alphas, but it also annoys Alphas who smell it.
Life is already so difficult, but He Yu can be even more difficult.
After confessing his love to a game friend who has been with him for a year and telling him about his illness.
The opponent retreated…
One day, He Yu picked up the leader of their Tongyan No. 1 Middle School, an Alpha with super S-level pheromone——Chu Yi (chu three times, yi four times) at the door of their house.
Chu Yi was covered in blood, he should have just experienced a fierce battle, when the S-level pheromone pressed over like crazy, He Yu’s legs softened and he kowtowed first…
He Yuruan took Chu Yi home softly and gave a little of his pheromone.
Chu Yi really woke up after smelling it. Not only was he awake, but he also vomited.
He Yu hurriedly bowed ninety degrees to apologize: “I’m sorry!”
Chu Yi: “…” He was allergic to alcohol and vomited, why did this man apologize.
The two accidentally discovered that the fit rate was as high as 98%, and Chu Yi, who was about to be forced into a marriage by his family, offered him an attractive offer – “Play my boyfriend, 20,000 yuan a month”.
He Yu decisively bowed his head to money.
So far, He Yu has been transparent since he was a child, and has turned into the boyfriend of Chu Yi, a low-level character in the middle school! Show affection in various places every day!
One day, He Yu accidentally saw Chu Yi’s game id, which was exactly the same as Tui You’s crush!
He Yu was terrified: “Brother, let’s play something else!”
Chu Yi said casually, “No, just play with this.”
As he spoke, he opened He Yu’s account.
The two fell silent together.
the
Focus on:
1. Sand sculptures, pretending to be counselors, and a group of academic bullies attacked by X campus bosses, rich and coquettish
[Actually, it is a love story between “a little dog pretending to be cowardly” and “a cowardly old dog”]
2. The protagonist is an adult.
3. The receiving pheromone is watermelon, and the attacking pheromone is abstract ice. Iced Watermelon Mix!
4. The author of the sand sculpture bib: Kongwubingbing

Content tags: fantasy space sweet text growth campus
Search keywords: Protagonist: He Yu, Chu Yi (three tones of chu, four tones of yi) ┃ Supporting roles: Xin Tao, Yuan Li, Li Jinhang, Cheng Haoyan ┃ Others: He Yu, Chu Yi, Iced Watermelon
One-sentence introduction: Acting and acting, you are really my boyfriend
Idea: Don’t be afraid of any difficulties we encounter! Beat them all with a smile!

- Description from novelbuddy

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.