School Violence , harassment NAME : JAE WON PHONE NUMBER : +82 010 7756 3749 INSTAGRAM ID : JAEWON_0520 FACEBOOK : https://www.facebook.com/profile.php?id=100091866084368&mibextid=LQQJ4d https://www.facebook.com/profile.php?id=100091866084368&mibextid=LQQJ4d