Mhmmm... I'm not really sure. But we all know that Seo-in had a brother. From the prev chapter we had a glimpse why our babe didn't show up in the airport it is because of the d3ad brother who I think the reason why our babe is in that state (broken bones an stuff) for sure Seo-in doesn't know that his family paid the parents to hush up the violence.
@Benedictus Lelicia Fiacan Rauconeus No, but they had an anniversary dinner for his birthday or something. I REALLY want to know how he died too. I thought Seo-In found out his brother was bullying Yeongwoon and killed him for it (whether on accident or purpose) b,ut now I doubt it. A crackpot part of me wonders if there was an accident where both brothers were involved in and Seo-In was the one who died, the bodies got mixed up/misindentified, and the brother went insane and now thinks he's actually Seo-In. Something about Yeongwoon dreaming of the brother beating him up after they had s** is giving me creepy thoughts.