The series tells a melancholy story of youth that spans ten years: the young boy Qin Li becomes the target of public criticism on campus because his father robs and kills people. The transfer student Huang Shu, and her friends Wang Di and Feng Xuejiao always stand firmly by his side, and the four of them establish a precious campus friendship. However, a series of events during their growth process constantly challenge this friendship. How should they choose between perseverance and betrayal... "Coward" is adapted from Zheng Zhi's novel "Swallowed Alive".