basically seo in thought that yeongwoon had disappeared for no reason when they were young when in actuality it’s because of what his brother did and the parents paid them off. Originally he didn’t care about the blackmailing because his brothers already did and he just thought the victim was some random person, but now he knows the victim was yeongwoon and the reason he targeted yeongwoon was likely to get back at seo in

I’m confused can someone explain