Maybe her dad wasn't originally from the Real World, but a native of this world that somehow got sent to Earth in the "accident".

Would be a couple loose ends, like how he could speak Korean but that could be tied with a magic ability for transmigrators to understand other languages, or learning it when she was a baby in the less than 7 years they spent there...

So he accidentally returned to Korea...

I'm pretty sure the Father is from "the real world" so yeah It's probably not the guy in the party.
Not this guy either, unless he is using a fake name (which is very possible)

Ok, maybe he isn't the father... Sounding more and more like her father was a reincarnator who somehow got back home, and the MC went back in time and to another world.

Pretty good chance, yeah

I think almost everyone is against shoes on a bed though...

Nope, even worse. Your going to live with the MC.

Either Tutoring, or help with his crush on the silver haired girl.

She even has a hand pattern on her hand like the King.... Who did the king bury?

Lillian able to see the future pretty much confirmed. Even knew what her child would look like...

I would be VERY surprised if the MC doesn't turn out to be the princess that is supposed to be dead at this point...

I hate when translators misgender characters... I can kind of (but not really) understand when it happens in a novel, but in a comic where there are visual cue's? That makes no sense to me...

kinda predictable that it's a woman.

Will probably get it's original form back too.

Ah, that makes sense...

I'm honestly not sure how many version of this there are. I feel like I've been reading 3 versions of this, plus the novel that I read...

Thanks for the huge lore dump.
So she is the sick girl? Cause the healthy one seems like an ass and I can't think she would be trying to help cure her sick sister, but in the "little girl" form she wasn't coughing up blood.

Has she gotten sicker or is she making her illness look worse than it is?

I was sure the mysterious girl was the sister...is there a third sister in this family?

Yeah that was a great twist on the trope.

And suddenly the blindfold is starting to look like sunglasses....

In this universe Gravity is a lie and she has realized that fact.