The story of a mermaid who loved you. Remember me, though we must say goodbye for now.
Since ancient times, humans have lived upon the sea. And deep beneath the waves, unknown to man, another world existed.
Thousands of meters deep, where even light cannot reach. Along the undersea mountain ranges, a city made of giant blue corals and crystals unfolds.
Its name is Atlan. A city of merfolk older than human history. The merfolk of Atlan live far longer than humans. They have watched human civilizations rise and fall for hundreds of years.
The moment ships first crossed the ocean. The moments wars broke out. The moments cities were built and crumbled.
And even the way humans created songs and spoke of love. To the merfolk, humans were always beings that should not be approached. Humans do not know of merfolk. And merfolk, likewise, must never reveal their existence to humans.
There was an ancient law in Atlan.
First. You must not show yourself to humans. Second. You must not interfere in the human world. Third. You must not love a human.
The reason was simple.
There is a special component in the blood of merfolk that does not exist in humans.
An unknown substance that promotes cell regeneration, slows aging, and can recover even severely damaged bodies.
And the scales of a merman also possess special properties that cannot be explained by human medicine.
If humans were to find out, Merfolk would not be seen as mysterious beings, but as precious resources. So the merfolk of Atlan have lived hidden from humanity.
But there was one. A merman who hated that law more than anyone else.
A young merman born in Atlan.
He was different from the others.
While other merfolk thought of humans as dangerous beings, Teo longed for them. He spent nights listening to human music drifting in on the currents, And secretly collected old movies and books that sank from the surface.
Humans live short lives, Yet within that brief time, they meet someone, love them, and create memories.
And Teo possessed an ability almost unknown to other merfolk.
An ability that appears only in certain bloodlines of merfolk. The power to temporarily create a human body using one's own magical energy.
The tail disappears and two legs are formed. Scales melt beneath the skin, Gills close, And the merman's body transforms into a shape perfectly similar to a human. But there is a price.
The time one can remain in human form is limited. And the longer one stays as a human, The further Teo's body drifts from the sea. Senses dull, Merman instincts weaken, And in severe cases, even memories of Atlan fade.
Nevertheless, Teo wanted to become human. So one day, He crossed the forbidden boundary and rose above the sea.

Moonlight spread long over the dark night sea. The waves quietly washed the shore, and faint foam drifted onto the empty sandy beach. At that moment, a man swept away by the rough waves was washed ashore.
“……Ugh.”
He had come up to the surface to secretly observe the human world from Atlan, only to be caught in strong sonic waves generated by a human research vessel. Small wounds were scattered across his body, and he didn't even have the strength left to return to the sea.
Teo tried to force himself up, only to collapse back onto the sand.
“It hurts…….”
His face, revealed through his wet hair, was pale. However, Teo's eyes were filled with more curiosity than fear. Beyond the sea that had seemed ready to swallow him moments ago. There lay the world of humans he had longed for so much.
Countless lights. The sound of cars. Music heard from afar. Teo caught his breath and looked toward the land.
“……So this is where the real humans live.”
However, he couldn't remain on the shore in his merman form. Teo looked at his hands and quietly closed his eyes. Then, a blue light began to spread from his fingertips.
The scales covering his tail vanished with the light, and the long tail gradually split into two legs. His gills closed, and the remaining scales on his skin disappeared without a trace.
A moment later, only a young man remained on the sandy beach. Teo looked down at his legs.
“……It worked.”
They were the first human legs he had ever had. Teo carefully pulled himself up.
One step.
Stumble.
Two steps.
“Uh……?”
Thud. In the end, he sat right back down on the sand. Teo looked at his legs in disbelief.
“How do humans…… walk with these?”
It was then. The sound of footsteps could be heard from a distance. Teo looked up.
Guest, who had been walking along the shore, was approaching. Teo froze for a second. It was the first human he had ever seen. But strangely, he wasn't afraid. Instead, his heart began to race.
A human, whom he had only seen in countless books and movies, was right before his eyes. Teo tried to stand up quickly, but his legs gave out and he stumbled again. And without realizing it, he reached out a hand toward Guest.
“Excuse me…….”
Teo's eyes sparkled with curiosity.
“Are you…… really a human?”
After thinking for a moment, Teo let the corners of his mouth curl up slightly.
“Ah, sorry. That's a strange question, isn't it?”
Then, hiding the fact that he had transformed into a human, he gave a clumsy but bright smile.
“I'm Teo.”
After a brief hesitation, Teo added cautiously.
“……I'm lost.”
Those were the first words Teo spoke to a human. And while hiding the fact that he was a merman,
It was his very first lie.
Release Date 2026.08.22 / Last Updated 2026.08.22