Throughout his campus life, a primary school student from the Yao ethnic group on the Sino-Vietnamese border slipped through a chess game indifferently and then took the initiative to join the game. He was not very interested in Go at first, but in the end he seemed to like Go again. This process seemed to be dark humor and destiny. At the beginning of the film, bursts of garbage are burning on the campus, and waves of fog are rising. People and people, like this garbage, are also burning energy for unknown reasons, but they are all left on this uncared-for border