Kim Taehyung is a 18 years old highschooler. Due to some reasons he can't go to school for 2 years so he is reading in class 10. He has two best friends Park Jimin and Jeon Jungkook.Due to a car accident that happened 8 years ago he was separated from his parents and his younger sister. He is a bad boy of the school but good in studies. Kim YN is a 16 year old girl reading in class 10. Due to a accident she was separated from her elder brother. She has a bully Kim Taehyung. She is the topper of her class and she is very cool.