The beautiful little mermaid Ariel is a beautiful mermaid who yearns for adventure and romance, and yearns for the colorful world beyond the water. But as the youngest daughter of King Trinton, she is only prohibited from contacting humans by the laws of the Mermaid Kingdom. Normally, Ariels best friends are Flounder and Music Minister Sebastian. Of course, Scato on the sea often helps her "identify" the human things she finds. On the bottom of the deep sea, Ariel also has Her world of treasures is all human things she has collected.
During a storm, when Prince Alec’s ship on land was threatened, the rebellious Ariel rescued Alec and fell in love with him at first sight. After being separated from the prince, her determination to reach the shore was strengthened. In desperation, Ariel ignored the warnings of her friends Fatty and the red crab Sebastian and asked the ugly witch Ursula for help, hoping to become a human. But Ursula, who has evil intentions, is ambitious to seize the ocean world ruled by the king, and tries her best to make Ariel fall into a trap.
Ursula made an agreement with Ariel: in exchange for Ariel’s beautiful voice, she would become a human. However, on the third day after landing, before the sun goes down, she would receive the kiss of true love from the prince in order to become a real human being. Human, otherwise her soul would forever belong to the witch. Use your sweet voice to put on a pair of legs and enter the human world! But that beautiful dream turns into a race against time. Ariel must restore the princes love and her fathers kingdom. Because if she fails, Ursula will definitely let her father use the kingdom in exchange for the soul of her beloved daughter.
However, Ariel could no longer speak. She was always by the princes side, and because she couldn't speak, the prince didn't know that she was his savior. At this time, her beloved prince will also marry another human princess. Just when Ariel was heartbroken and almost lost her soul, a group of friends arrived. With the help of Sebastian the red crab and Fatty the flounder, Ariel bravely rushed out of the underwater world, defeated the curse, and finally Find the feelings you want to have.