"H2O: Deep Love in the Water" tells the story of three adolescent girls who unexpectedly gain a special ability when facing all kinds of troubles in their growth - whenever they come into contact with water, they will transform into mermaids with huge fish tails.This mysterious and wonderful power not only brings surprises and miracles to their lives, but also comes with challenges and confusion.In the interweaving of friendship, love and self-identity, they gradually learn to accept their true selves and write their own youth chapters in the sparkling world.