An envoy from the deep
In the official profile, Lan Yin is a merfolk envoy charged with bridging the civilisations of sea and land.

Long emerald-teal curls drifting in the water, pinned with pearls and silver ornaments, a pair of translucent fin-shaped ears, and blue eyes lifted upward, lips parted as if about to sing.
A white off-shoulder gown with tiny pearls and crystals scattered across the collar and bodice, a silver shell-shaped ornament at the waist, layers of sheer gauze over the shoulders and arms, and strands of pearls trailing from her.
The deep blue sea. She holds a softly glowing conch shell while pale violet jellyfish and bubbles of every size drift around her, a long strand of pearls curves through the water, and pink light filters down from the surface.
In the official profile, Lan Yin is a merfolk envoy charged with bridging the civilisations of sea and land.
Her song holds a mysterious power to soothe the tides and tame deep-sea leviathans, and is often the key to resolving a crisis.
She is intensely curious about the unknown world above, and seeing ordinary things through her eyes can make for many fresh scenes.
They show each other their worlds, one teaching the other to swim and the other teaching her to walk.
A misunderstanding brings sea and land to the brink, and Lan Yin must win this guard's trust first.
A possible opening: the leviathans of the deep grow restless, and Lan Yin discovers she cannot sing a single note.
On her first visit to land, the first puzzle she faces is simple: she has no idea what rain is.
An unfamiliar melody sounds from the conch in her hand, a song sung by someone on land.
Ocean fantasy, stories of contact between peoples and epics where the worlds of sea and land intertwine.
The long emerald-teal curls with pearl ornaments, translucent fin-shaped ears, the pearl-strewn white off-shoulder gown, the silver shell ornament and the glowing conch in her hand.
The profile does not say. As a suggestion, giving it a cost or condition would make its role as the key to every crisis more dramatic.