Deviant: No Longer Human - Chapter 689: New Sister?

As a kind of punishment, the wings of a demon king were cut, and he eventually lost all of his power. To get back his power, he made a deal with the angel. He will go to the realm of humans to find a special girl with a special skill who is meant to be her queen. If the woman got pregnant, all of his sins would be forgiven, and he will regain all his powers. But he didn’t think that knowing her would be an adventure for him as the king of demons in the human realm.

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.

The Bulwark Duke’s residence had fallen. On the day of the duke’s son’s wedding, all men in the family were imprisoned. In just three days, the patriarch and duke died. What was originally a joyful occasion became a depressing funeral.Shen Yijia had transmigrated as the unfortunate bride. By the time her husband was sent back home to her, he was crippled and heavily injured. Everyone said that this fallen family would never recover. Shen Yijia possessed a spirit liquid that helped her bring her husband back from the brink of death. When Song Jingchen woke up, he advised her to marry someone else instead. Shen Yijia stared at his handsome face and shook her head. “Don’t worry, I’ll keep you.”On the way back to their hometown, they encountered bandits and even suicide warriors who tried to assassinate them at all costs. Shen Yijia patted her chest and vowed to her beautiful husband, saying, “Don’t worry, I’ll protect you.” However, nosy people kept nagging at her, saying that a wife should be knowledgeable, reasonable, and virtuous. Was she supposed to help her husband pick out a concubine too? Shen Yijia was annoyed. As a modern woman, she couldn’t possibly get her husband a concubine! Her husband belonged to her alone!For the sake of earning money, she hunted in the mountains, battled scum, and took in disciples. Eventually, Shen Yijia’s life became smooth sailing.Many years later, they returned to the capital. Everyone assumed that Song Jingchen disliked having such a violent wife, and would soon divorce her to remarry. The young noblewomen rubbed their hands together in glee, waiting for Shen Yijia to leave so they could take her place. But as they waited and waited, they saw the Song Jingchen gently hold Shen Yijia’s hands right after the latter had beaten someone up. Song Jingchen asked worriedly, “Does it hurt?” [1v1 sweet love. A doting yet violent female lead vs a jealous two-faced male lead]

The older sister flees from her wedding to be with her lover, and her younger sister is forced to take her place in marrying a very powerful man.

—

As luck would have it, she ends up transmigrating into the body of that younger sister.

Although the man that she weds is very powerful, he’s the irredeemable final villain.

All villains are doomed to a bleak ending. And, as this villain’s wife, she’s afraid that her ending won’t be good either.

Fortunately, the older sister had gone back in time after having experienced a lifetime of suffering. This prodigal daughter returns to the turning point of her life. Pointing at her younger sister, she demands for her younger sister to hand over her husband.

Looking at this beautifully crying older sister, Ye Zhen swiftly yields and says, “Older sister, don’t worry. I haven’t even done anything with brother-in-law!”

—

To her shock, she later discovers that she’s pregnant.

With tears in her eyes, her older sister says, “Didn’t you say that nothing happened between the two of you?”

—

Ye Zhen looks at the great villain that doggedly pursues her. She is utterly and totally doomed.

—

There’s a great villain lying next to her, and she’s pregnant with a mini villain. How’s she suppose to survive?!

—

Later on, as Ye Zhen watches the great villain putting the baby down and changing the diaper, she sighs. “There’s nothing that can be done. I’ve already missed the golden opportunity to turn things around. How can I leave now?”

- Description from novelupdates