18-year-old Cha Eun-Sang lives with her mother who is mute. Her mother works as a housekeeper and Eun-Sang also works part-time jobs to help out. One day, Eun-Sang's older sister (Yoon Jin-Seo) calls from the U.S. and informs them that she will marry. Eun-Sang's mother then asks Eun-Sang to send her older sister some money from her savings account. Eun-Sang isn't happy with her situation and decides to go to the U.S. herself to see if she can start a better life with her sister.