Mr. Yan

The fat and ugly Nora Smith is the laughingstock of the town when her fiancé breaks off their engagement.
He says, “The sight of your gigantic face and thunder thighs disgusts me! Don't ever pester me again!"
“What an idiot.” Nora scoffs and turns around, her lips curling up into a smile. 
Later, when Nora successfully slims down, she returns as an astounding beauty.
Her ex-fiancé comes to her bearing flowers and begs, "I was wrong, Nora. I’m willing to do anything as long as you come back to me.” Nora rests her chin in her hands and smiles as she replies, “Real men don’t dwell on the past.” Angered, he says, “You’re just a dimwit saddled with baggage that I dumped, Nora. No one will want you except me!"
But following that…
A young and popular singer tweets: “Nora Smith is my goddess!"
An internationally renowned surgeon asks, “Are you free tonight, Nora?”
Even the rich and influential hotshot whom everyone is scared of comes forward and says, ”I can take care of my wife and children myself, thank you very much.”

She Becomes Glamorous After The Engagement Annulment

As though he was stunned, and also as though he had not heard Jon clearly, Silvester's voice rose instantly.

Jon hurriedly explained cautiously, "She's the daughter that the Smiths have just acknowledged. Her name is Nora Smith. I heard that she is also Justin Hunt's fiancée… Oh, she also has another important identity, Anti the internationally-known surgeon. She is greatly admired as Anti. I reckon the young woman has gotten too full of herself after being praised a little, so she thinks she's now invincible in the medical field."

Jon glanced at Silvester cautiously at this point.

He was actually a little unsure about this.

Given how Yvonne had been able to buy the Zabe Corporation's Calming Pill from Silvester, this showed that Silvester was actually in contact with the Smiths.

In particular, when Nora came to borrow the books just now, she had actually succeeded in doing so…

Jon Gets Slapped In The Face