A pretty girl named, Park Hyerin, lives with her parets and her sister, named Park Hyejin. She doesn’t have any problem with her parents. Her parents love her so much until her sister was born. Everything turns upside down. Her parents starts to ignore her. She was 2 years old girl when her sister was born. At school, everybody like to ignore and bully her. She only had a bestfriend named Kim SooHyun.