Counterattack System appeared when I'm already At The Mahayana Realm - Chapter 542 - 543:

The world had started doomsday, and I struggled for a year, before I died under an enchanted beast’s claw. Heaven has given me another chance, back a day before the end happen. Will I be able to change my fate, and that of my loved ones? Now, I will start my journey on becoming the strongest on the planet that the Gods have changed into a game world.

- Description from Novelupdates

The wrong way to act as a villain no.1: Get rid of the protagonist while he still hasn’t become powerful.

The wrong way to act as a villain no.2: Take the limelight from the protagonist at the key moment.

The wrong way to act as a villain no.3: Make the protagonist fall in love with you, thus making him incapable of completing the final step – eliminating the major villain.

Han Changsheng, Head of the Demonic Cult, is the major villain who’s employed all three incorrect methods.

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As the leader of the first Demonic Cult in the underground world of martial arts and cultivation, Tianning Cult, Han Changsheng carried on the long-standing tradition of an unstable mind and a refusal to seek any treatment.

Originally, his life should have passed by quickly and simply, but one day he kicked a descended Immortal Lord off a cliff. In order to make up for this mistake, he must aid the Immortal Lord in ascending back to his position… but why does this mistake keep growing? Hey, lao zi doesn’t need you as a younger brother, you should look for An Yuan! Don’t chase after lao zi, you’re destined to be An Yuan’s wife! Don’t worship lao zi as a martial arts lord, lao zi is the genuine leader of the Demonic Cult! Hey, Hey lao zi is obviously the major villain! What the hell are you doing?!

- Description from Novelupdates

She was transmigrated into a novel where she became the cannon fodder who abused the male lead and ultimately suffered her demise under said male lead. And to return back home, she had to obtain the city boundary map first.

Ye Mu doesn’t want to play a game! Now that she’s inside the book with such a plot, the only way around her death is to kill the male lead first and let this world collapse!

However, upon seeing a scraggly, skinny little boy whose brows were full of perseverance, her hand won’t move…

Well then, she would subdue the male lead’s tyrannical tendencies! How to do it? Raise the male lead and have him help her find the city boundary map? That’s a good idea!

Despite raising him properly, the male lead seems to have grown into a devious man who won’t listen to her. Moreover, he lures her over with the city boundary map.

“Do you want this or not? Then come to my bed.”

Her face was full of tears. Where was the promised honest and upstanding monarch? Does she have to raise him all over again?

The man smiles and pats her on the head, “Come on, stop crying. Wash and go to bed.”

- Description from Novelupdates

Her brother, who was the one who caused a coup d’etat, had sliced her throat. After she returned to the time before she died, she decided that she would somehow tame him and survive!

But..

Did she tame him too much?

***

“Brother, why don’t you get married?”

There was no reply from him, instead the glass that he held popped and cracked.

“Oh no! You’re bleeding.”

“Why should I get married?”

“Eh?”

“I already have you.”

Why should you get married, you say? You have to get the Empress so I can leave this castle! Sezh laughed strangely.

“Sezh.”

At that moment, she stumbled and Raytan pulled her body into his arms. His red eyes started to gleam suggestively while looking down at Sezh who was trapped in his arms.

“You know we are not real siblings.”