Zhou Zhiyuan, who is about to graduate, was inspired by his sister's water polo coach Ling Haoer and began to recruit and reorganize the water polo team. He called together the original water polo team "old oil sticks" trio, Chen Yuting and Jiang Jia who were rejected by the basketball team, and Bai Lang, a former provincial water polo genius. This temporary water polo team not only has to compete for training venues externally, but also has to face the idea of "disbanding at any time" that the team members give up internally. The water polo team is making ridiculous contradictions while overcoming difficulties and riding the wind and waves. In order to keep the water polo team alive, Bai Lang went through untold hardships to invite Ling Haoer, his former senior sister who he had a crush on, to be the coach. Ling Haoer also developed admiration for Bai Lang during the training process, and the two of them aroused the waves of love. At this time, Bai Lang's former rival Liu Feng also issued a letter of challenge to the water polo team.