She is a student at Ever After High and the daughter of the Little Mermaid from the story of the same name. In the conflict of destiny, she is on the side of Royal.
Meeshell tends to be shy or hesitant when trying new things and meeting new people, although she seems more comfortable if they share a common interest, (she loves music). Meeshell is literally a fish out of water. In her human form, she lacks self-confidence and feels more comfortable in her true mermaid form.