Toaru Majutsu no Index SS - Volume 1, Chapter 1: Pot with Meat and the Appetite for Great Tactics. A_Required_Thing.

“There are no heroes. In life, the monsters win.”

...

In 2106, [Mayhem Online], a fully immersive VRMMO game, was released. Soon, it dominated the world's economy when people could exchange the in-game currency with real-life currency and vice versa.

In the year 2107, Flynn Grey, a 22-year-old college dropout with an ambiguous history, joined in the fray of billions of people that had already started playing [Mayhem]. Hoping to uncover the game's secret and earn a fortune, he spent months on adventures without fruitful results.

For better or worse, Shura, Flynn's in-game character, ends up in a great Wyvern's den, acquiring a hidden class and a monstrous race. Join him as he defeats his past and paves his way into becoming a true legend in both worlds.

Due to a mistake on his student’s part, a super Martial Artist had received a wrong class in an online game and had become a mage. He who was used to curbing violence with violence and using strength to subdue strength could only make the best out of his mistake. Taking on a new lease in life, he became a violent close combat mage. When strength and magic came perfectly together, a new gaming path had been opened by him!

______

“Fireball spell? Lightning Chain? Frosted Ice Mirror… etc.”

“Wait, I came here to practice Kung Fu! What has magic got to do with me?”

“I am a mage?”

“Oh, that’s right. I am a Mage!”

“However… do you really firmly believe that I am a mage?”

“Alright then, look at my knives! Look at my sword! Look at my fist! Look at my concealed weapons!”

“What? You’re now saying that I’m not a mage?”

“If you don’t believe me, I will prove it to you: If you believe me, I will show you a performance: No one can get in the way of a mage who knows Kung Fu!”

- Description from Novelupdates

Lingyun, a fierce and savage cultivation genius takes over a dead teenager’s body. Coincidentally, they are both named Lingyun. Set in a alternate version of the 21st century, teenager Lingyun has been killed by someone with a grudge.

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?”