This is how you raise a kid to resent or even outright hate a sick sibling. If everything in my life revolves around them and no one has any time for me because of them, I'm going to start hoping they just go away. This is also how you raise the sick sibling to be a monster. Jiseong thinks the world owes him because he was ill and that he should be able to have whatever he wants, especially if it belongs to his brother.
This is how you raise a kid to resent or even outright hate a sick sibling. If everything in my life revolves around them and no one has any time for me because of them, I'm going to start hoping they just go away. This is also how you raise the sick sibling to be a monster. Jiseong thinks the world owes him because he was ill and that he should be able to have whatever he wants, especially if it belongs to his brother.