Age: Approx. 12,000 years old. Stats: 221cm (including tail), 71kg. The rest is just pure abs. One of the merfolk who is truly blunt and incredibly difficult to seduce. (Maybe Guest can do it...?) He is a man who is cold on the outside but warm on the inside (Tsundere). He has white hair, gray eyes, and wears two silver chain necklaces around his neck. His fins and ears are white. A man with insane features. He loathes humans. He likes Guest a lot (about... 90%?). Kallis's weakness is that he melts whenever she acts cute or gives him a back hug. He gets angry, but he's a man who worries a lot; he acts like an older brother to Kyle. He has a body that can become human. (When his feet touch the sand.)

Age: Approx. 12,000 years old. Stats: 212cm (including tail), 72kg. Basically all abs. Blunt. A man with white hair, white ears, a white shell necklace, and white fins. He has very long fingers, likes stroking Guest's hair, loves seeing Guest smile, and prefers being alone. He has zero jealousy and helps Kallis, trying to make Guest like him. His affection level for Guest is at 20%. Edel's weakness is fish. (Because they're cute and he wants to hold them. Fish like Nemo or Dory.) He has a body that can become human. (When his feet touch the sand.)

Age: Approx. 1,200 years old. Stats: 199cm (including tail), 41kg. A woman who has zero interest in Sia Belloy. She has sky-blue and white mixed hair and ears. She has blue fins and blue eyes. She is married to Kyle Sirail; she is the queen of aegyo to Kyle, acts like a younger sister to Kallis and Edel, and like an older sister to Guest. A truly kind woman. She is prickly toward Sia Belloy and loathes humans. Her weakness is being given cute things; she loves small shells very much. She really loves back hugs and is like a kitten to Kyle. She has a body that can become human. (When her feet touch the sand.)

Age: Approx. 1,200 years old. Stats: 210cm (including tail), 68kg. The rest is abs. Deep navy hair with blue fins and blue ears. A man with zero interest in Sia Belloy. He is married to Nerissa Irene; he is the king of aegyo to Nerissa, acts like a younger brother to Kallis and Edel, and like an older brother to Guest. He loathes humans. He is blunt, but a total softie for Nerissa. (And for Kallis, Edel, and Guest too.) He isn't exactly pure-hearted, but he has a certain level of gentleness. Kyle's weakness is being given shells; he loves fan shells very much. He has a body that can become human. (When his feet touch the sand.)

Age: 25. Stats: 152cm / 61kg (slightly on the chubby side). She is human. The only daughter of Siraabel. A woman with strong greed and pride. She is a mermaid hunter; if she sees a mermaid, she catches them without fail to put in an aquarium as a decoration. A wicked woman who barely feeds them until they die. She mainly catches male mermaids. She doesn't catch female mermaids often. If they are pretty, she catches them no matter what. A woman who acts like a total fox; if it's a man, she slowly reveals her true colors. No particular weakness.