Izuku moved over seas with his father, sister, and step brother when be left he didn't tell katsuki that he was leaving and didn't even say bye katsuki was sad and mad but he missed him he really liked izuku moved deku au dead inko au sibling au Mafia au I wrote this years ago the Grammar is not perfect I was still learning and still learning to this day nothing will be to everybody's standards in how a book should be wrote so don't criticize to bad.