It's Actually Not Easy Wanting to be a Supporting Male Lead - Chapter 7 part2

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.

Ripped from a dead-end life and plunged into a world where danger lurks behind every smile, Xiulan must learn to thrive in a realm ruled by ruthless ambition and deadly secrets. When Li Mei dies in a traffic accident after another soul-crushing retail shift, she awakens in a familiar yet dangerous world—inside her favorite game, . Now inhabiting the body of Lin Xiulan, the scorned second daughter of a noble family, she finds herself thrust into a nest of vipers where her very existence is an offense to those around her. Armed only with her knowledge of the game and the wounds from a lifetime of dealing with entitled customers, Xiulan refuses to play the role of the family’s punching bag. Determined to rise above, she’ll need to master immortal alchemy, tame arcane spirit beasts, perfect her martial arts, and face off against her scheming sisters and stepmother. But in Arinthia, a land where power reigns supreme and the weak are swept aside, Xiulan must do more than just survive and fade into the background. With the knowledge of a devastating future that awaits the realm’s beloved Crown Princess, she’ll need every ounce of her modern wit and growing abilities to prevent a catastrophe that would ruin the entire realm—assuming she can survive her own family long enough to do anything about it. Only by transforming herself into a force of reckoning can Xiulan hope to protect those she comes to care about—and survive the darkness that awaits.

oung Master Shen Yanshi from the Shen family's conglomerate is known to be very picky when it comes to women, but Xiang-Nuan managed to catch his eye with her face that bore a striking resemblance to his first love.She played the role of a naive and innocent little white flower, doing her best to fulfill her duties as a stand-in.Yanshi was generous towards her, providing her with many opportunities in the past two years, transforming her from an unknown extra to a somewhat famous second-tier actress.However, when the actual first love, Miss Gong, returned, Xiang-Nuan obediently took the initiative to break up with him, and Yanshi nonchalantly let her go, saying, “Do as you wish.”After parting ways with Yanshi, Xiang-Nuan's once pure and innocent style underwent a drastic transformation, evolving into a sweet and spicy elegant lady style that drifted further away from her previous path.One day, as Xiang-Nuan was leaving the set, she spotted Yanshi's car parked outside.He looked at her coldly, “You acted well.”She modestly replied, “President Shen is too kind.”“Come back and continue acting.”Feigning affection, putting on a show, the one who falls in love first is the loser.

{Mature Content: 18+}This story follows Liu Yizan, a transmigrator who received his cheat four years after arriving in the new world.On his 18th birthday, Liu Yizan received a system called the Lustful Upgrade System. This unique system allows him to enhance his own and others' talents and techniques using Upgrade Points.But to earn upgrade points Liu Yizan must have sexual intercourse with women and made sure they satisfied.Come and follow the journey of Liu Yizan as he overcomes every obstacle in his path, rising to the pinnacle of the world alongside his loved ones.......Warning Tags: Yuri, Incest, Group sex(Only the MC will be the male.), Netori(MC will take other people's women too.)