Sandara Park or known as Dara to her friends is one of the heir of Park Telecommunication Company which is leading in Japan.She is a pure Korean live in Japan. Dara is a typical college student taking up Business Management at Tokyo University.She has one younger brother named Junhoe or Ju-ne for short. 

Junhoe or Ju-ne - Dara's younger brother , a sassy but super protective to his noona in a different way.

Dara has 3 friends :

Chaerin or CL - the baddest female in Tokyo. She is the owner of one of popular bar in tokyo "CL bar" at her young age. Heir of Lee family that owned various bar all over Japan. She is also the young sister of the famous bachelor CEO Lee Seunghyun or Seungri in entertainment industry.

Minzy - the ero-maknae of the group. Heir f the Gong Industry who owned chocolate factory and various dance studio.

And Park Bom - Dara's bestfriend since they still in diaper , heir of Park fruits plantation and fisheries.

Dara's family was moved in Japan when she was 5 years old to have a new life since their family suffered from bankruptcy in Korea. Bom,Minzy and her was born in Korea while CL was the only one that born in Japan by her Korean parents. The four still visits Sokor specially during summer to relax. Jeju Island is one of their favorite summer getaway.They also flew to Sokor to watch their favorite Kpop boyband Bigbang concerts and join some drag racing there. Their family didn't knew that the four is a professional