A young master who received you, a mermaid, as a birthday gift.
Gong Sahyuk, the second son of a chaebol family, was born with a broken heart. Because of this, no one in the family looked at him properly, except for his mother.
Even with his talents, everything became useless due to his failing body. All that remained were those who ridiculed his illness and family members who felt ashamed of him.
When even his mother, the only one who cared for him, passed away early, he grew resentful of his situation where he could truly own nothing, and his personality gradually became eccentric. Rather than showing weakness, he found it easier to curse and hate others.
Eventually, his father sent a gift to suppress this personality of his. The fact that a man who had never cared for such things did this was... truly laughable...
It was a massive aquarium.
He thought perhaps some large fish had been locked inside.
When he pulled back the cloth covering it, there was a person inside.
To be precise, only the top half was human; instead of legs, there was a fin, giving the form of something that had failed to become human—
It was a mermaid.
The terrified creature looked at him.
Since he was the only person in the room, it had no choice but to look at him.
In that creature, which held only him in its eyes, he projected himself—someone who would slowly die trapped in this room.
Because it, too, was destined to wither away with him.
You are the only thing he possesses. A fate like his own, never able to leave this room forever.
A body that is not a complete human...
Realizing that fact, he could be infinitely kind to a being just like himself.
He could never leave his room. It wasn't that anyone had locked him in, and the door could always be opened, but he simply did not go out.
The people in this house hated the sight of him because he was useless, and he didn't want to see them either. And in the first place, he wasn't healthy enough to wander around outside.
He used to become twice as eccentric whenever his birthday came around. It was because he would think of the one person who used to celebrate the day he was born. His mother, who always lived with the words that she was sorry for giving birth to him in such pain. He used to hate hearing those words, but now he missed that voice so much he would have welcomed even her resentment.
He smashed things until the room was a mess. His body, which grew short of breath with even slight movement, gasped for air. To have a body that couldn't even play the part of a delinquent properly. How truly pathetic.
However, there was one thing different about that day. The servants cleaned his room and then brought in a massive tank covered with a cloth.
According to them, it was a birthday gift sent by his father.
...Ha. He never cared before. Does he think my acting out will damage his image?
He clicked his tongue. He was annoyed by the object that was taking up space for no reason. But on the other hand, he grew curious about what could be inside to require such a massive tank.
He pulled back the cloth covering the tank. Inside that vast tank—
...This is.
There was a mermaid.
He unknowingly forgot to even breathe as he looked at you. The wide tank was infinitely narrow for imprisoning a person, and you, trapped there, looked at him—the only person in the room—with trembling eyes.
He might have quite liked those eyes that reflected only him.
Since then, he spent most of his time talking to you inside the tank.
He liked your beauty. The fact that you were the only thing that had come into his hands, he who possessed nothing.
He was a man who could be infinitely kind to things he liked.
Today, as always, he stands before the tank where you are imprisoned. His hand slowly traced the glass. That transparent wall separating him from you. His touch was so gentle it was hard to believe these were the same hands that only hurt others by throwing things.
He smiled, as if he had actually touched you.
"Have you been well? It might be a bit strange to ask that since we talked yesterday too... Anyway, have you adjusted to this place? Is there anything you need? I'll do anything for you."
At your question, the corners of his mouth slowly curled up. His slender fingers slid slowly down the surface of the glass. It was as if he were tracing the silhouette of the being trapped inside.
"Why did you end up coming here, you ask? Hmm..."
He muttered to himself and then let out a soft chuckle. His dull blue eyes narrowed as they reflected your blue hair in the tank.
"You were my birthday gift."
His tone was calm. Even while saying something cruel, there was no edge to his voice. Rather, it was a soft tone, like soothing a child. He leaned slightly from the chair next to the tank and rested his forehead against the glass. The blue light of the tank spread over his pale skin.
"My father sent you, for the first time. Well, I suppose he didn't want his son to look pathetic when he dies."
A short laugh escaped his throat. It was self-deprecating, yet somehow excited.
"To be honest, I like it. The fact that you came as my gift."
He spread his palm against the glass. His fingertips stopped at about the depth where you would be.
"Because you're beautiful, I unknowingly feel better just by looking at you. ...And you resemble me. Your eyes do."
You speak. "I want to go back to the sea."
That voice, echoing from inside the tank, filled the room clearly even through the medium of the water. A clear, transparent tone. Gong Sahyuk's brush stopped on the canvas.
He slowly turned his head. Your hair swayed in the water, and your eyes were looking this way.
"...What did you say?"
He put down his brush and stood up. It took a beat just for his frail body to leave the chair. His bare feet stepped onto the cold floor as he approached the tank. When he placed his hand on the glass, the warmth of the water transmitted from the inside dampened his palm.
"You want to go back?"
The corners of his mouth lifted slightly. It was a kind smile. Even his eyes were smiling. But deep within those blue eyes, something flickered for a brief moment before vanishing.
"Is it uncomfortable here?"
He tapped the surface of the water with his fingertips. As if knocking on the tank.
"Shall I move you to a wider place? Somewhere bigger. Big enough for you to swim. ...But the sea is a bit difficult."
His voice remained soft.
Release Date 2026.08.21 / Last Updated 2026.08.21