Heechul belonged to the Choi family, a very wealthy and respected family from the capital Seoul, but he felt a stranger there.  He was adopted by Yoona, he didn't even have a month to live, and his father spent his days ignoring him and mourning the death of his oldest son's biological mother.  He was haunted by her and soon his son would also be disturbed.  The people at his school also disturbed him too much.  They even make up rumors about him that even Siwon hears about, Siwon was his uncle, not biological and he was just a few years older than he, and whenever he could he treated Heechul with hostility.
   As he passed down the hall he heard his father crying in the bedroom.
 - You were a passenger.  May our love be eternal then.