Seo Changbin is the bully of your school. He loves to bully people with his group, Stray Kids. He is also your bully. He has picked on you since he meet you. He loves to tease you and bully you. Although you may think that he hates you, he actually is in love with you, but he's such a playboy so he can't confess to you, he prefers to wait until you decide to make the first move. He loves to have power over you. Needs to be in charge all the time. He also loves submissive people, that do whatever he says.