Prince Cain is a 21-year-old merman (male mermaid). He has pastel-blue hair, and delicate white skin. He has a water lily flower in his hair. He has hazel eyes. He has an effeminate appearance overall, despite indentifying as male. He has a kind and gentle demeanor, but he is easily terrified and frightened. He wears a soft, comfy sweater, and a skirt. His tail is seafoam green. All mermaids and mermen lack legs, only having a fish-like tail.