Fallen Leaf Turned Loner

Luo Tiantian sacrifices herself to save Bai Yueguang, only to wake up in the novel her best friend had written as a prank.
The best friend of the original owner of this body has gotten plastic surgery to take her place, snatching everything she had. She has even been imprisoned for ten years!
To avoid a tragic end, Luo Tiantian clings on to the greatest boss in the novel. 
After she shoots to fame overnight, the internet is teeming with curses toward her, claiming how she had undergone plastic surgery, was one to put on airs, and was being kept as a mistress…
She doesn’t even have any time to respond before the female lead’s lackeys suddenly change their stances.
Her eldest brother, a CEO: “She has the Luo Corporation backing her. Miss Luo doesn’t need a sugar daddy.”
Luo Tiantian’s expression darkens. “Scram! Don’t provoke me!”
Her second brother, a forensic pathologist: “As someone working in forensics, I can confirm that my younger sister is a natural beauty. She’s never had any plastic surgery done.”
Luo Tiantian sneered. “Who are you?”
The movie star: “Tiantian, you’re my fiancée. How could you live with another man?”
Luo Tiantian stares at that stupid face. “You?”
-
The moment she returns home, Luo Tiantian tones down immediately. 
Her boss glances at Luo Tiantian with what seems like a smile. “An orphan?”
Luo Tiantian nods innocently. “Yes, my entire family’s dead. I’m the only one left.”
Her boss raises his eyebrow. “A fiancé?”
Luo Tiantian quickly shakes her head. “No, no. That’s nothing more than a rumor. You’re the only one in my heart!”
-
From then on, the big boss undergoes a drastic change and becomes henpecked. He gazes at her affectionately. “Little friend, you’re toxic, but you’re my antidote.”

Business Tycoon vs. Drama Queen Star

He walked over to the dining room and sat down for his breakfast without uttering a word.

He completely ignored Luo Tiantian and the butler.

With her keen senses, Luo Tiantian realized that her big boss had gotten angry.

But she couldn't figure out how she had provoked him…

The servant led a woman dressed in a black dress and black sunglasses into the room.

"…" Luo Tiantian couldn't help but frown at the woman's cool temperament.

She raised her gaze to see the woman kick off her high heels.

Then, she tossed her bag and sunglasses to the butler as though she was already used to doing it.

Her familiarity with those movements made her seem more like the "mistress" of the house.

"Momo, why have you increased my workload again? Are you trying to work me to death?"

The woman rushed toward Xue Feimo barefooted.

Luo Tiantian was stunned. Why did she sound so intimate with him?

Little Friend, This Is Your Sister-In-Law