The Terminally Ill Young Master is the Mad Dog of the Underworld - Chapter 187

Lin Chuyi, after meticulously selecting for three years, chose a high-quality boyfriend, only to be cheated on a month into the relationship. She decisively broke up with him and immediately took the place of the Ye Family's daughter, marrying the heir of a wealthy family, Sheng Tingyuan.She planned to leave gracefully when the Ye Family's real daughter returned.Sheng Tingyuan blocked her path, “You lied to me and now you want to run away?”Lin Chuyi, “Don't you hate it the most when people lie to you? Should I not run and wait for you to deal with me?”Sheng Tingyuan pressed her into a corner, “You're not 'other people,' wife.”

I fell into a game world out of nowhere with an instant kill skill.
And then somehow, I became a bigshot.

Summary Version 1:

The mysterious boy Ling Chen is saved by a little girl as he lay on the street dying. Years later, he strikes a deal to save this savior-turned sister and enters the virtual world. In a future Earth where advanced warfare has forced nations to settle issues virtually or else suffer the consequences, Ling Chen bursts into the scene and goes from unknown to legend. Yet all is not as it seems, for Ling Chen has a dark past, and there is a greater mystery at hand behind this virtual world.

Summary Version 2:

To save his terminally ill little sister, Ling Chen enters the newly released virtual game world and joins a small gaming studio comprising entirely of women. From now on walking upon his path towards the pinnacle. An ancient, evil item almost forgotten by history, the “Lunar Scourge” helps forge his unsurpassable legend, and causes him to unknowingly step upon a path that is destined to be punished by the heavens, the way of the shura.