MaryahLu

"Why do the main character's parents often get the short end of the stick?"
That is what Mila asked while looking up at the sky. She was grumbling toward whoever sent her inside the novel she read before she died.
She becomes the mother of the main character, whose parents are both dead. Mila's character was merely a tool for the MC's character development.
It's a simple, fix-all solution. The author wanted to make the audience instantly sympathetic towards the main character, and the best thing he did was to have the MC's parents die.

After she avoided her death in the original plot, death flags kept coming for her. 

Will the original plot not end if she's not dead?

....

proofreader: Aserehtam

Main character's parents must die

"Mom, did mother Mila contact you?" Christopher asked Ethel.

It's nine in the evening, and Christopher is getting worried because Mila isn't home yet. He asked Ethel because she's the only one in the house who owns a mobile phone.

Ethel stopped crunching down on her chips and looked at the wall clock

"Hmm? I didn't notice. Is it already this late?" Ethel hurriedly took her phone and checked her messages. She was enjoying watching the series on TV when she lost track of time. It's for her to realize that she's the only one who isn't wearing an anxious expression. Her child and her daughter-in-law were sitting on the same couch as her, but they were looking at her and not the TV. She could see Robert just quietly standing near the door staring at it, as if Mila would go home faster if he kept staring at it.

"Hmm? She texted me. She said she wouldn't be coming home. She was transferred to a new branch."

"I promise. I will."