This story takes place on the beautiful Earth deep in the Milky Way. The specific location is located in Jiangyan City, Jiangsu Province, China. Although the story is ordinary, there is a tragic and compassionate story of family and friendship behind the seemingly ordinary. The elder brother who is omnipotent but often causes trouble; the younger sister who is calm and persistent but is a real "tomboy"; the father who is democratic and open but strict with his wife; the mother who works hard but screams when strangers come into the house. The mother; the grandfather who still has a childlike innocence but a serious heart; the grandmother who dotes on children but is like a child herself; the alien cave monster who has a strong sense of justice but often takes advantage of others; and the leader who is ambitious but has immeasurable intelligence. Weird, bizarre and terrifying events are in this book, waiting for you to read. It can not only satisfy your desire for adventure, but also embolden you and make you no longer bored in the dark.