An ordinary cowardly urban youth suffering from cancer was in a car accident. Because he saved the ox demon in his previous life, he was able to return to his childhood with the help of the ox demon. Will he be willing to live an ordinary life? Obviously not! Please see how the urban youth can change history and create miracles when they return to their childhood? Enjoy life! This book is a pure fiction, if there is any similarity, it is a pure coincidence!