Siena - an american girl, her mom died when she was 6 years old.

when she was 17 years old her dad sent her to korea so she'll has a special treatment

in korea she lives with her mom's friend, and her mom's friend has 2 son, Cho kyuhyun and Cho yong hwa

her life became worse when she knew that cho kyuhyun is a member of a boyband in korea, and she realized that she can't like him because she don't want to hurt him if one day she have to left him