Han Jisung has been your bully since preschool he's always got something to say to you or about you, he always has a girlfriend who hates you but today.. today is different because today you don't come into school, Han knows your parents because his parents do business deals with them all the time (you're both rich) so he asks your parents for your address (you also live alone) to your apartment and he goes there to check on you because he's worried about you... maybe it's more than just worry