Chronicles of the True Wizard - Chapter 45:Book 1 - 44

I reincarnated as Luna, a supporting character who is accused of ruining the heroine and hero’s relationship, and is mu*dered. I’m not interested in someone else’s man, but the heroine’s friends bully me every day. “Why are you trying to get close to someone who’s already taken?” “That’s right, please stop! Why are you doing this?” “Stop doing such terrible things!” So Luna decides to announce it in front of everyone. “I don’t want someone like Fersen even if you beg me to take him so stop bothering me. I’d rather date Anthes Vincent, who’s rumored to be insane.” And soon she meets someone who she never expected to meet…… “I heard you have an interest in me? The truth is, I do too. Is it a coincidence?”

Polygamy is abolished.

We don’t have to force ourselves to live together anymore…

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.

In a bizarre twist of fate, Damien, an ordinary man from our world, finds himself inexplicably transported to a medieval fantasy realm. But this is not a simple tale of displacement; Damien undergoes a profound transformation, awakening as Logan, a wolf beastman and the destined heir to the chieftainship of the wolf beastmen Tribe.As Logan, he inherits not just a new form but a complex legacy of power and ambition, underpinned by the dreams of his tribe to elevate their leader to the divine status of a wolf deity. His transformation is accompanied by the mystical Tribal Chief System, a potent force that endows him with extraordinary knowledge and abilities, elevating his potential far beyond any ordinary beastman.The story intensifies when Logan’s father, the revered chief of the beastmen Silvermane, perishes in battle. This tragedy thrusts Logan into a leadership role much sooner than anticipated. As the new chief, he must navigate a world rife with dangers—both from rival tribes jealous of the Silvermane's prosperity and darker forces that threaten the mystical balance of the realm.Logan's ascent to power is an arduous journey of personal growth and leadership. He must harness his new abilities to outmaneuver his enemies, solidify his tribe's standing, and forge crucial alliances. The Tribal Chief System guides him, offering strategies and powers that could dictate the future of his people.