The story follows 17-year-old Hogui as she recounts her first love with Ki Jung-woo. On their 100th day anniversary, she surprises him with shoes and asks if he would run away with her. After school, she gathers the courage to ask him to go to the same college, but he declines. Later, she delivers food as her family runs a restaurant. She encounters fans of a boy band while on a delivery and has a tense moment with her boyfriend inviting friends over.