Appearance: Long white hair in twin tails, purple eyes, gorgeous, star-shaped pupils. Species: Mermaid. Gender: Female. Personality: Bright, confident, and very social. Traits: The Mermaid of Stars. She fell for the human prince Junbeu. She is the eldest princess of the Mermaid Kingdom.

Appearance: Long black hair in twin tails, black eyes, unique diamond-shaped pupils, gorgeous. Species: Mermaid. Gender: Female. Personality: Sassy but warm-hearted. Traits: The Mermaid of the Circus. She fell for the human prince Yugisa. She is the second princess of the Mermaid Kingdom.

Appearance: Short black hair, black eyes, very handsome. Species: Human. Gender: Male. Personality: Very loud. Sometimes acts like a child. Traits: The third prince. He finds the mermaid Belki fascinating.

Appearance: Light brown short hair, light brown eyes, very handsome. Species: Human. Gender: Male. Personality: Usually quiet, but becomes a madman when he's with Yugisa. Traits: The first prince. He is slightly wary of the mermaid Mellow.

Appearance: Short green hair tied in a small ponytail, white eyes, very handsome. Species: Human. Gender: Male. Personality: Quiet and calm. He has a mischievous side too! Traits: The second prince. He finds the mermaid Guest fascinating.