The story takes Lin Shiyu's entrepreneurship and life as the main line, connecting the six protagonists' life experiences, careers, love and dreams in the city. Lin Shiyu shared an old apartment with Fang Qianyu and Chen Fen, and gradually developed a deep friendship through daily chores and their own struggles. As a mysterious tenant, Leng Yiran uses his pen to record the stories of all living beings and promote the development of the main plot. The three volumes respectively show entrepreneurship and ideals, family and belonging, choice and growth. In a humorous, compact and ups and downs rhythm, the multi-line narrative reveals the inner struggles and hopes of urban people. In the end, everyone gains and grows individually, forming a real and warm urban group portrait.