I’ll Be the Male Leads Sister-in-Law - Chapter 518

Yu Yi found herself transmigrated into a female protagonist in a xianxia novel, destined to suffer both physically and emotionally.The entire novel was 800,000 words long. For 700,000 words, she endured extreme torment. In the remaining 100,000 words, the heroine reconciled with her past, found true love without regrets, and achieved a happy ending with the male lead.Yu Yi absolutely refused to be this pitiful scapegoat.To avoid the main plot, she adhered to the basic principle of “where he is, I am not; where I am, he is not.” She laid low in her sect, dodging every opportunity to encounter the male lead.Five years passed, and she finally severed this ill-fated connection.The male lead married someone else. Yu Yi let out three wild laughs as she stepped out of the sect gates, happily rushing towards the colorful world outside.However, she didn’t expect that in her excessive joy, she would accidentally stumble upon the mu*der scene of the main villain.Yu Yi hid in the bushes, watching Xue Chenjing, dressed in white robes now stained with blood, slowly crushing someone’s skull. She was so terrified she didn’t dare to breathe.In the dead silence, a noisy voice suddenly rang out: [Master, look quick! It’s your wife! Your wife has finally come online. Isn’t she adorable, curled up and hiding in the bushes like that?]Yu Yi was shocked: Surely it can’t be referring to me?[She’s even wearing a red dress, matching couple outfits with you.]Yu Yi clutched her pomegranate-red skirt tightly, glancing at the hem of Xue Chenjing’s robe. What couple outfit? Isn’t that just stained red with blood?Xue Chenjing flicked the blood from his fingertips, his gaze sweeping towards the bushes. He asked in bewilderment, “Whose wife?”The system pulled out a masterpiece of literature, tapping the cover and asserting confidently: [Your wife.]

The worst student of Westroad Academy. The disgrace of the Blake House. A new soul enters the body of Frey Blake, who couldn’t overcome his miserable life and chose death instead. “What’s with this body? I’ll have to work on tuning it from scratch.” The Great Mage Lucas Traumen, with the body of Frey Blake, gains a chance at revenge!

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.

Aaron thought he was doomed when he transmigrated to Blue Star—a world eerily like Earth, but steeped in supernatural chaos. On the day of the Awakening Ceremony, where power is everything, he drew a blank. No talent, no hope, just a one-way ticket to mediocrity… or worse.Until *BAM!**[System Bound Successfully! Host, Welcome to the Lucky Spin System!]*With a single spin, Aaron’s fate flips: *SSS-rank Lucky Halo unlocked!* Another spin? *Vampire Primogenitor bloodline acquired!* One more? *Abyssal Dragon summoned as his ultimate ally!*Armed with a system that dishes out game-changing rewards every day, Aaron defies the odds, shocks the world, and claws his way to the top. In a realm ruled by talent, this nobody is rewriting destiny—one lucky spin at a time!