Ji Hansheng and Jiang Duan are recognized rivals in the swimming world. From the youth training camp to the world-class arena, sparks fly in every duel between them. However, after the much-anticipated peak showdown at the World Championships, Ji Hansheng, who won the championship, discovered the secret behind Jiang Duan's sharp decline in form - severe psychological disorders and injuries. When everyone thought Jiang Duan would retire sadly, Ji Hansheng made a decision that shocked everyone: he walked over to his opponent and became Jiang Duan's only and most demanding rehabilitation training partner. The relationship between these former rivals was quietly reshaped through sweat and struggle.
