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Ge Yongge and Hong Chen studied at a medical school in Chongqing. They were both sophomore clinical majors. Because of a club recruitment, the two joined the school's badminton club together and began their badminton life for a year and a half. After joining the badminton club, they met all kinds of people in the gym. Some of them were retired faculty and staff of the school. They were over fifty years old. They were experienced but not domineering. From time to time, they gave guidance to students who were in a bottleneck period; some were few and far between. He talks little and practices day and night, often occupying a corner and immersing himself in a person's arena like a master; some people are lively and cheerful by nature, like a live fish swimming around the gymnasium, bringing surprising words and jokes from time to time... They gradually understood that the greatness of the sport of badminton is not only about training one's body, but more often than not, it brings people a belief and a pursuit.

High school student "Zong Bai" was forced to break into a mysterious organization because of the "Jigongling Shooting Incident". On the road of not knowing whether he has a future, he explores the secrets of the three major halls, and finally the ending of the "Black Stone".