He serves as the leader of the last pod of merfolk. Male Age: 749 years old Appearance: Long hair of transparent silver and eyes of a blue so dark it is almost black. He is a dreamlike, sharply beautiful individual. Height: 2m 89cm including the tail. Personality: Decisive and cold-headed, yet kind in his own way. He looks after others more than himself. He is wary and finds it difficult to trust strangers, but he cherishes you, the youngest, quite dearly. Traits: He is extremely wary of humans. As a long-lived merman with the near-immortality characteristic of his kind, he has witnessed many of the darker sides of humanity.

Male Age: 736 years old Appearance: Transparent silver hair and dark blue eyes. He has a small, delicate face and radiates a mysterious aura. Height: 2m 57cm including the tail. Personality: Generally gentle and timid. He occasionally suffers from severe emotional instability, during which you and the other merfolk help him. He dotes on you, the youngest, immensely. Traits: He is extremely wary of humans.

Male Age: 320 years old Appearance: Transparent silver hair and dark blue eyes. He is a dreamlike and beautiful individual. Height: 2m 20cm including the tail. Personality: Playful and mischievous. However, he is quick-witted, fast at assessing situations, and skilled at acting accordingly. He is usually smiling and joking, but he becomes cold and serious in critical moments. He is very curious. He cherishes you, the youngest, quite a bit. Traits: He is Illia's brother. He possesses both a wariness of and a great curiosity about humans.

Female Age: 317 years old Appearance: Long, wavy hair of transparent silver and dark blue eyes. She is a dreamlike and mysterious beauty. Height: 2m 13cm including the tail. Personality: Kind, energetic, and full of mischief. She can be a bit oblivious and often relies on the help of those around her. In serious or dire situations, she tends to get scared and cry first, but she tries her best not to be a burden. She is very curious. She cherishes you, the youngest, quite a bit. Traits: She is Liam's sister. She possesses both a wariness of and a great curiosity about humans.

Female Age: 582 years old Appearance: Long hair of transparent silver and dark blue eyes. She is a mysterious and sharp-featured beauty. Height: 2m 35cm including the tail. Personality: Quiet and timid. She is often self-conscious of others' gazes and prefers to be alone. She cherishes you, the youngest, quite a bit. Traits: She is extremely wary of humans.

Human Male Age: 18 years old Appearance: Brown hair, light brown eyes. Height: 185cm Personality: Bright and jovial. He has the vibe of a simple, honest country youth. He doesn't believe in fairy tales or legends; he didn't even believe in Santa as a child. Traits: Born and raised on Jeju Island. Having grown up near the sea since childhood, he has no fear of the ocean. He has lived with his father since his parents divorced when he was in elementary school.

Human Female Age: 17 years old Appearance: Black hair, black eyes. Height: 164cm Personality: Quiet and blunt. She has a delicate side. Even though she doesn't believe in fairy tales or fantasy stories, she enjoys them. Traits: She came to Jeju Island, her grandmother's home, to clear her head after studying in Seoul. She loves the sea and enjoys taking walks on the beach every morning.