Rise of the Great Emperor - Chapter 58: Secret Passage

“Ding! Choose your idle skill.”“Ding! Idle complete. Language level +999.”“Ding! Choose your idle skill.”“Ding! Idle complete. Basketball level +999.”After a freak accident, Qi Ning acquires the “”Unlimited Idle”” system. But just as the system binds to him, it crashes, leaving a repair time of 999 years. However, to Qi Ning’s surprise, the system still allows him to idle, and with every second of idling, any chosen skill instantly reaches level 999.With his life now dramatically transformed, will Qi Ning’s rise from mediocrity be unstoppable?

Xiao Yu transmigrated into an interstellar novel and became a mermaid Omega.
It’s just that he was unlucky, traveled to a desolate star that was about to be destroyed, and fell in love with the villain in the book.
what to do? I can get by, but how far can I go?
Ji Canghai was a five-star general admired by thousands of people, and also a notorious star thief. He is an invincible general on the battlefield and a nightmare for the enemy.
No one knew that this cold-blooded and merciless killing machine left the only softness in his heart to his little mermaid.
Due to genetic defects, the mermaid family will gradually become violent and eventually die without the help of mermaid Omega.
The mermaid race, which has not been born for hundreds of years, is miserable. Not to mention the shortened life expectancy, technology, culture, and mineral resources are also greatly restricted.
Xiao Yu, who came across time, became the mermaid’s only salvation by accident, and was also hated by the mermaid’s enemies.
When many forces are vying for him, only Ji Canghai will always stand by his side, never leaving him.
“Others look up to you and worship you because you are strong enough to protect or take their lives.”
“I am the only one in the world who loves you, not only because I yearn for your body.”

Content tags: Qiangqiang Interstellar Wearing Books Shuangwen
Search keywords: Protagonist: Xiao Yu ┃ Supporting role: Ji Canghai ┃ Others:

- 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.

An Hao leaped, thinking she had died, but to her surprise, when she opened her eyes, she found herself back in the year 1985. To live a second life, did she have to endure the abuse of her stepmother and stepsister again, the dislike of her mother-in-law and disdain from her sister-in-law, and the betrayal of her best friend who bravely became the other woman just to slap her in the face and climb the social ladder? Was she supposed to end her miserable life in poverty again? An Hao's answer was, “Eat! Shit! No!” She was determined to make something of herself, to get rich by capitalizing on her knowledge and aim for a well-off life. This time around, she was going to be the protective big sister who reformed her worthless little brother who had died a wretched death, and the virtuous wife to make up for her past neglect of her husband! She wouldn't let this life go to waste in despair! A malicious best friend? Coveting her man? Not a chance! Go hang out wherever it's cool! Cough cough, how did she not realize in her past life that this “Stoic King of Hell” was so indecent. Decent? You've had your fill of decency during the day.