Main Characters:

Yoona

- a happy person with a happy life

- will be Kim Ha Na when she got her amnesia

- loves Jessica so much her childhood friend

Jessica

- the daughter of the president of the republic of korea

- Yoona's bestfriend

- her night and shining armor

- hates being the daughter of the president

- want some ordinary life someday

Seohyun

- Yoona's step sister in their father

- she love her sister so much

- Tiffany's classmate in the school of incheon in grade school

Yuri

- Yoona's neiborhood friend

- will help finding Yoona

- will save Yoona on an accident

Tiffany

- will be Yoona's savior when she got her amnesia

- the daughter of the chairman in their country

- has a secret love on her