Daehyun's little sister
Jung Jihyun is Daehyun's younger sister by 3 years. She is the school's nerd, dislike attention and quiet only to strangers. She relies alot on him and when he debuted, nothing is the same for Jihyun and Daehyun is really very protective over her. She is going through a heart-break made by her two best friends and whe...