Everyone's life is like a book. Tears and laughter, pain and joy, darkness and light are all words flowing from the writer's pen. When a person's desire disrupts the original development plot, the messenger of light and darkness will guide you to a fantasy bookstore. At the intersection of black and white, good and evil, the owner of the bookstore will personally hand the book of destiny into your hands. You can write the ending of your life by yourself, the devil will give you strength, and the angel will sing for you. However, after the desire is realized, the consequences of paying will be. . . . . . . . . .