Aqua Heroes (戀愛自由式) is a twenty episode modern series by Television Broadcasts Limited in Hong Kong.

The Angels Swimming Club was open a long time ago by Yau Dak when he was a famous swimmer.

There used to be a lot of students who joined the club, but recently the number of students decreased due to Yau Dak's loss of interest in swimming and hence putting less time and effort into the Angels Swimming Club.

Due to a misunderstanding, Yau Dak and Sandy (Sheren Tang) have been separated for eighteen years, but they did not divorce as both of them still love each other secretly.

At the same time, Rain came back to Hong Kong from the United States to join the Devils Swimming Club and to find her online husband.