MTL - I Just Want to Be in a Relationship - Chapter 28

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.

SSR-ranked killer Mu Hui died in an explosion, only waking up to find herself transmigrated into the body of a vicious female supporting character in a book.

Zaiyila thought she had suffered enough—betrayed by her own mother and sold into marriage with a wealthy, aging man. But on the night of her pre-wedding ceremony, everything takes a dark and unexpected turn. A swarm of deadly snakes descends upon the gathering, killing her groom-to-be and throwing the hall into chaos. Fear spreads as the people recognize the serpents as the servants of the enigmatic and terrifying Snake King, Everett.When Everett himself arrives—a striking, horned man of unmatched beauty and power—Zaiyila finds herself drawn to him in ways she cannot explain. Despite the fear he inspires in others, she feels an unshakable connection to him, one that transcends the realm of logic. The moment she defies the fearful kneeling of the crowd, she unknowingly seals her fate.Taken into Everett’s domain, Zaiyila is forced to confront not only the dangerous, supernatural world she’s been thrust into but also the awakening desires she cannot deny. As she unravels the truth about her past and her connection to the Snake King, she must decide—will she resist the pull of destiny, or will she embrace the darkness and passion that Everett offers?A tale of betrayal, power, and an irresistible bond, Bride of the Serpent King explores the fine line between fear and desire, fate and choice.---

After getting hit by a truck in an attempt to chase down his brother's bullies, Alex in transmigrated into the body of a weak mage in a fantasy world called Eldora.As expected, transmigration can never be complete without a golden finger! Shortly after waking up in his new body, Alex awakens the almighty path system.But that wasn't all, a more shocking discovery almost blew Alex's mind away.....System is crashing!! System is crashing!! System is crashing!!!![Due to the system breaking down, several perimeters of the system have been broken. Required exp for leveling up is now fixed, repeatable missions no longer have limits and can be completed continuously even when capped. Penalty function disabled, rewards for missions are now fixed].......Alex's system got broken and a lot of functions stopped working but this was a good thing because Alex can now level up continuously without anything to slow him down.......Armed with such a system, join Alex as he journeys to become the strongest mage in this new world and what his reaction would be after finding out the secret of his system and why it had broken!!