​​ Kim Sojin is a seventeen  year old student who lived the darkest days of her life with her uncle and his family after her parents died in a car accident. She ran away from that terrible place in her eighteenth birthday and went to her only 'friend' Jongin. She stayed with him for few weeks. Dropping school, she finds a job as a waitress in a small café in Gangnam St. And now she lives in her own apartment after she ran away again but this time from her once called FRIEND.