Are you also dissatisfied with your current life? And what would it be like if we changed our way of life? The novel was inspired by a conversation I had with my daughter, who was troubled by her lack of understanding from her parents and longed for a buy-one-get-one-free life. She hopes she has another world, a world where she makes the decisions. This real and helpless life now is just a gift. Even if you give it up, you will not feel guilty. I would like to dedicate this article to my daughter, hoping that she will have a real and colorful life.