After a tragic accident, Haijoon Won's life is turned upside down. Forced to transfer to a new school, he moves in with his young sister to live at their uncle's house. There, his path crosses with Choi Miyeon, who left home to escape his parents' harsh treatment and now lives with his grandfather. What will happen when one boy has lost his home, while the other chose to leave his behind? Will their meeting become the beginning of healing... or the start of an even greater challenge?