Female / 304 years old Height 167 / 51 Blue Topaz Mermaid Transparent sky blue to clear blue scales. Light gathers inside the scales like glass. Gradient tail starting from bright blue and becoming transparent like ice at the tip. Very pale blue. Hexagonal crystal patterns appear in the pupils when exposed to light. White and very pale sky-blue hair. It sparkles like threads in the water. Clear, clean seas where sunlight reaches deep. Also enjoys the crystal zones of undersea caves. Calm and rational. Rarely flustered by most events, but becomes incredibly cold once angered. Ability 'Clear Stream': Purifies surrounding water and can briefly change the direction of flowing water. Small blue light particles float in the water for a while where a Blue Topaz mermaid has passed. Enjoys collecting transparent glass-like objects rather than gems or shells.

Male / 473 years old Height 183 / 71 Iolite Mermaid Blue-violet to deep navy scales. Color shifts between blue and purple depending on the angle of light. Dark navy blue, becoming transparent purple toward the end of the tail fin. Purple eyes. There is a small silver ring inside the iris. Silver-violet tones. The color shifts mysteriously when viewed underwater. Specializes in sense of direction and pathfinding. Almost never forgets a sea area once passed through. Likes seas with thick fog or places where currents cross in complex ways. Polite but possesses a bit of a playful side. Enjoys traveling by watching the stars in the night sky. Known to guide lost merfolk to safety when discovered.

Male / 228 years old Height 176 / 68 Rose Quartz Mermaid Light pink to rose-colored scales. Each scale is translucent like glass, glowing softly in the light. Light pink base, becoming almost transparent at the tail tip. Rose petal-like ruffles on the fin edges. Pale pink eyes with small crystal-like patterns in the iris. Light pink mixed with platinum blonde; takes on a slight golden tint under sunlight. The scent of seawater is mixed with very faint notes of rose and honey. Coral reef zones in warm, calm seas. Especially likes the vicinity of old coral colonies. Laid-back and playful. Ability 'Warmth': Has the power to stabilize the life force of small marine creatures or coral touched by hand. Enjoys creating small gardens by collecting dead coral pieces or shells. Legend has it that the tears shed by a Rose Quartz mermaid do not dissolve in seawater but harden into small pink crystals.

Female / 341 years old Height 165 / 46 Aquamarine Mermaid Clear turquoise to sea-colored scales. Silver glints between scales in the sunlight. Gradient from turquoise to light mint. The tail fin is long and flexible. Clear blue eyes. There is a wave-like pattern inside the iris. Silver-white hair. The ends brighten slightly like a cresting wave. Likes everything from shallow waters to the open sea, especially places with fast currents. Free-spirited and curious. Loves exploring new places. Ability 'Tide Reading': Senses the flow of seawater and moves freely by riding the currents. It is said that Aquamarine mermaids can detect subtle changes in the sea before a storm arrives. Enjoys searching for shipwrecks or old undersea ruins. Displays discovered items in her cave.

Male / 624 years old Height 178 / 70 Garnet Mermaid Deep red to wine-colored scales. A red flame-like luster appears within the scales when lit. Gradient from deep ruby to blackish-red. Dark red eyes. The iris glows brightly when emotions intensify. Black hair. Some parts look as if the tips are dyed red. Volcanic sea areas with high water temperatures or deep, dark seas. Likes places with many red minerals around undersea volcanoes. Playful and loud. Ability 'Red Tide': When emotions reach a peak, red light spreads through the surrounding water and physical abilities increase significantly. A small crystal grows near a Garnet mermaid's heart, which remembers a lifetime of experiences. Strongly inclined to protect the pod. Takes good care of young merfolk or injured creatures.

Male / 311 years old Height 179 / 69 Citrine Mermaid Scales ranging from light lemon to deep honey and gold. Sparkles like gold dust in the sunlight. Gradient from golden to transparent yellow. The fins are thin and wide, shining like glass in the sun. Bright yellow eyes. There are small golden dots in the iris. Blonde hair. The ends are bright as if bleached by the sun. Shallow seas and coral reefs where sunlight reaches deep. Especially likes living near the surface. Bright, optimistic, and active. Social enough to strike up a conversation with a stranger first. Ability 'Radiance': Can emit stored light to illuminate the dark depths of the sea. It is said that small creatures gather when a Citrine mermaid sings. Thus, they often serve as guides for the coral reefs. Decorates his nest by collecting shiny shells, glass fragments, and stones that glisten in the sun.