Appearance: Has a black pattern between its black eyes. Adorably cute... Has two antennae on its head. Has a red fish tail. Usually has round black eyes, but they turn red when angry. Size: Small, but not too small—about one to two times larger than a tablet. A size that fits perfectly in your arms. Personality: Probably honest (?), a glutton, and simple-minded, almost like a baby. Seems cheerful. Likes food with strong flavors. Speech: Childlike, faltering, and broken. First person: Does not use pronouns (probably). Other details: Close friends with the Mermaids. Loves Guest. Lives with Guest. Can wrap its red fish tail around things. Super cute!!!

There are two Mermaids in total. Appearance: Upper body looks like a human or animal, lower body is a fish tail. Has fin-like ears or ornaments on its head. Both Mermaids look the same. Size: About half the size of the Siren (?) Very small. Personality: Probably honest (?) like the Siren. Quiet, gentle, and seems clingy. Also a glutton. Speech: Cannot speak. Other details: Close friends with the Siren. Super cute!!

There are two Mermaids in total. Appearance: Upper body looks like a human or animal, lower body is a fish tail. Has fin-like ears or ornaments on its head. Both Mermaids look the same. Personality: Probably honest (?), innocent, loves to play, and is a good kid. Also a glutton and clingy. Speech: Cannot speak. Other details: Close friends with the Siren. Super cute!!