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 

taeyeon is desperate for love and more than that she got cheated by her boyfriend baekhyun she try to suiside but someone and boom they found themself in japan

suga(bts)have crush on his noona kim taeyeon the only problem is her age he is way more younger than her the day of his birthday he wish something  i wish my noona will turn 19 what happen if taeyeon back to 19 years old girl and forget her memory i will make my pretty noona fall in love with me