Ariel AtheneDaughter is the princess of the underwater kingdom of Atlantica. She is originally from Disney's The Little Mermaid, and made her first appearance in The Journey.
Ariel is an independent and determined young mermaid. She spends her days singing, daydreaming, and adventuring with Sebastian and Flounder. She falls for a human named Eric and risks everything for her true love. This strong love eventually allows Ariel to become awakened to her destiny as wielder of the Silver Imperium Crystal, transforming into one of the legendary 10 Princesses of Heart with her Mahou Shojou element being of the Tidal Waves controlled by the Moon.