Jiyoon Kim, also known as Ji, lives a normal life in Seoul, South Korea, but is hiding a dark secret: she is a refugee from North Korea. For years she kept it a secret, to protect herself and her fathers identity, but one untrustful friend spills the beans one day in school. Meanwhile, The girls fell head over heals for the new guy, including Jiyoon. But he can't know about her secret. Can he?