Su Chen, a former top musician, died of cancer due to overwork in his past life. After transmigrating five years into the future, he decides to live a simple life, using a system that rewards him for making choices. He becomes the mysterious composer behind his wife's, a top celebrity, success. However, their peaceful life is disrupted when his daughter reveals his identity on a live show. His daughter also starts telling unique fairy tales, revealing his identity as the author of those stories.