Min-seok gives up his life as a writer and takes care of his son, Hyun-jae, who has a congenital disability. The present, who is growing from a boy to an adult, comes into conflict with Ki-cheol, a supporter for the disabled, and Min-seok, dreaming of independence. Then, one day, he finds out that something is wrong with Min-seok's body due to an unexpected accident, and the present and the daily life of his family change.