kim hara go and enter a new highschool for a secret to find out where her sister dara is hidden after she heard that busan art highschool is last place she ever seen.dara got into a car accident manage by the"black fish mafia"so taeyeon try to solve all things and have a lot of goals: 1-finding her sister dara is her first goal  p.s:this fanfic dont include any romance just mystery. carachter: kim hara main personnaltiy