Oona, an example of a mermaid.
Merpeople are legendary sea creatures long regarded to be a myth. They have the head and upper body of a human and the lower body of a fish-like tail which means half-fish and half-humanoid. They have the abilities to breathe underwater and communicate with all forms of sealife. They can also talk to animals, as shown in the Floating Palace when Oona talks with Clover, stating, "Of course. Can't humans?" Females are called mermaids or mergirls, while males are called mermen or merboys. Infants are also called merbabies. Both genders seemingly originate from the Isle of Mermaids, one of the floating isles of the Mystic Isles, where all magic derives from.
The royal family of Enchancia regularly go on vacations to Merroway Cove, a kingdom in which a society of merpeople live under the rule of Queen Emmaline.
History
Many landwellers believe that merpeople do not exist. Sofia proves to her family that they do exist. Their ancestors came from the Isle of Mermaids in the Mystic Isles originally before establishing colonies in the Ever Realm.