Emerald and the Lost Treasure

Emerald, a young mermaid princess in training, loves exploring her underwater world and spending time with friends, but she's also learning the various rules of royal life. When she discovers a lost teddy bear with a tag indicating it belongs to a human, she enlists the help of her friends, Isadora Moon and Mirabelle, to find its owner. Their adventure takes them across land and sea, blending friendship, exploration, and a touch of magic in their quest to reunite the teddy with its rightful owner.