Nan-young, a girl in her late teens, is ashamed of her mother’s job as a housekeeper in a motel. One day, her mother gives Nan-young a red butterfly hairpin that she found while cleaning the motel. The next day Nan-young finds out that the hairpin had originally been Soo-ah’s, who was Nan-young’s best friend before becoming somewhat estranged. (Kim Hea-seung)