
That's the point, I believe. Her mom's so hell bent to making sure the story runs on its predisposed route because she thinks she can return to Korea that way, becoming an abusive parent who doesn't give a shit to the actual living, breathing child in front of her, managing to cover this abuse up as strictness and love that even the father's a stupidly lenient enabler.
She prolly didn't even need to be an abusive control freak to make the course of things carry on the way she knows the story. She prolly had a better chance of making the story stick to what it should be had she not forced Lilith to be things she was pressured to be when she coulda learned to love them on her own as she grew up.
Feels bad for Lilith.

Yeah, I imagine the mother didn't even see anyone around her as 'people' because to her they're just 'characters' in a story. Cause I can't imagine that the mom really "loved the story so much she just HAD to have it go the right way."
While I highly doubt I'd become an abusive parent, if I was in that position, I'd think that that might be my only chance to return to my homeworld. (Since it seems like the mom probably woke up one day in the body-- no god to explain things or anyone to rely on.) I'd be pretty desperate. But hopefully never that desperate
I hate Lilith’s mom but methods aside, what if the mom thinks that the only way for her to return to her real world is by getting the story to go as it should? I know there are some heroines that believe that.