When Keiko was a young girl, she was despised by everyone because of her mother's affair. With the help of her childhood sweethearts Zheng Jinpeng and Zhao Yi, Keiko wanted to get rid of the influence of her original family, only to discover that everyone is inevitably at the mercy of fate. They were involved in the whirlpool of growth, and the sins and entanglements of their parents also cast a dark shadow on their youth. In today's society where desires are overflowing, when ideals encounter reality, they stumble and struggle to find the beauty and original intention of the past and achieve true self-growth. However, the age of forty has suddenly arrived, half a lifetime has passed away, youth has disappeared, and I am no longer a teenager... This novel uses the textile factory life in the 1990s as a wedge, the social changes from 1990 to 2018 as the background, and the stories of Xu Meizhen, Huizi, Zheng Jinpeng, Zhao Yi, Qin Xiaoguan and others. It strives to present the shadow of the original family, youth confusion, mid-life crisis, social transformation test, and their collision, integration and acceptance with their parents experienced by the post-80s and post-90s who grew up in the period of social transformation.