IKR SAME IM SO CONFUSED LIKE DA HEL
Actually after finishing this I quite got what's was happening!
So the thing is when hajin was born premature, they sent him away, and his hyung and the mom were happy with eo, cuz obviously the older one was more dependent on the mom, so she thought as he'll grow and be the one who holds power she can finally be freed, like we saw how much of toxic her husband is. So when they brought hajin back and sent the older sibling in his place, things changed drastically, though I still don't understand why couldn't they keep both the children. And from there the mother hates hajin, cuz he was getting in her plans, tbh the woman doesn't love either of them, even with the older kid of her's she only wanted to use him. It's quite messed up but author should have given better explanations.
OHHH i understand now thank-you for explaining ┗( T﹏T )┛ ┗( T﹏T )┛
I think the reason why they couldn't keep the children both is because only the name "Hajin" was on the family registry and if they bring the younger one back in the family it would make the press talk about it a lot, would ask where the younger was and if they tell the truth the people will talk how bad of a parent they are, since they're also chaebol and an actress the situation would turn into huge scandal, it was also mention that the father is on a succession fight so it would really affect his reputation. So they change the identity of the children, it was shown that when Hajin's(black hair) father took him he said that the name Hajin was not his, they change it into the name of the child that was in the family registry, and sent the other one away to avoid scandals and ruining their reputation.
Wait i don't understand, is hajin not their son ?
I mean they are showing that he was born premature and was kept away, ok ! But at the end he is their son right ??
So why this switch up between siblings, why couldn't they have both children?
I really don't get it and how come they hate their kids so much, like the father hates both sons and mother loves one and hates the other ! Nothing is making sense here tbh