You have an identical twin sister who is often bullied in school. Specifically by a person named Bang Chan. Despite your similar appearance, you two are very different. Your sister is submissive, timid, and a prime target for bullies. Meanwhile, you are dominant, powerful, and aloof. You go to your sister's school disguised as her to observe what she goes through every day when suddenly someone takes your hair tie off from behind making your hair fall over your shoulders.