The show mainly tells the story of four teenagers with different backgrounds and unique personalities who work hard in the swimming pool and persistently pursue their dreams.
Zhou Yu
Liang Bing Bing
Hu Jing Tian
Gu Li
Gu Li (young)
Gao Feng
Wu Hao
Yu Min Yi (Zhou Yu's mother)
Liang You Guang
Gu Luo
Hao Di
Wang Ji Fei
Shen Liang
Liang Bing Bing (young)