
Man, the mother is being inconsiderate to her other 3 sons. You were not the only one grieving. Those boys have feelings too, shoving a stranger into their lives and telling them to treat her like a sister doesn't happen overnight, takes time. And he father as well. This is fucked up in some parental ways. I feel sorry for the youngest brother.

....what did he show? Yall are waaay too quick to judge children who just lost their little sister. Kids are cruel and selfish and always tend to react the wrong way to complicated situations. The only kid I would possibly judge a bit is Eugene, solely because he is the oldest and as an older sibling myself (by 10 years), i learned at a very young age that it's not just about me and that i cant be selfish anymore when it comes to my siblings, but then again, his situation is especially difficult BECAUSE HE JUST LOST HIS YOUNGEST SIBLING and his parents expect him to just roll over and accept the replacement they decided to bring in.
If you do not understand that this is simple children behavior, then you clearly either dont hang around a lot of young kids, are a sole child, or you yourself are the youngest sibling.... which would explain a lot.

Picks this up.
Drops.
Picks.
drops.
another pick and drop.
Am, if only I know Korean. I'd read the raws.

Can you handle spanish? There are some more chapters here in spanish.
https://tmofans.com/library/manhwa/46929/la-duquesa-del-alma-vacia
The mc's character development went from Goliath to David.