With the father's disease as blasting fuse, the book explodes the inner world of the children one by one, from the panic after knowing their father is hospitalized to being at a loss while taking care of their father in the ward, from helplessness while choosing to give up the treatment to regret facing their father's death. All the complex and subtle emotions are knitted together with the grief and difficulties of the brothers and sisters, showcasing life and death, morality and human nature.