Youde is the founder of the swimming team. He divorced his wife (played by Deng Cuiwen) in his early years. The eldest daughter Youxian (played by Chen Boyuan) stayed with her father, and the second daughter Youying (played by Tang Ning) lived with her mother. Ying has always disliked her father and sister, and often quarreled with him. Unexpectedly, the two sisters fell in love with their teammate Edwin (played by Xiao Zhengnan) at the same time. Xian, who has always been accommodating to her sister, has kept a distance from Edwin. Ying is a swimming champion, but Ying has never believed that her father's unkempt appearance is the flying fish prince of the year, so she joined the swimming team that is opposed to her father. Both swimming teams are working hard for the final swimming grand prix. At this time, there are not enough people in Youde's team to participate in the competition. Although Xian is quite knowledgeable about swimming, she rarely swims because of her long and short legs. At this time, she hopes that her sister can return to her team to help her father win the game. After her sister's hard persuasion, Ying gave up the original team and joined her father's team. But at this time, it was discovered that Ying's nervous system was damaged by drugs, and the drugs were what the original swimming team insisted on taking, but the competition was imminent...