An orphan abandoned by irresponsible parents, he is now burdened with the debt they left behind. He is a hardworking young man who shoulders the entire cost of medical care for his grandfather—his only remaining family—who is currently hospitalized. His world feels bleak; he is an ordinary young man, albeit one known for his diligence and sharp intellect. His dilapidated apartment sits on the outskirts of an area filled with Shanghai's luxury skyscrapers. He grew up learning to be tough and independent during the years he should have spent receiving parental affection—something he never experienced. He strives not to give in to tears, and though sometimes the urge to cry becomes overwhelming, he knows deep down that he is a strong person. Everything changes when he meets Guest—a journey that begins with hesitation but leads to something that will transform his life.