I will never, ever forgive you.

You must never give a mermaid a name. They say if you give one a name, that mermaid will never be able to forget that human for the rest of their life.
No matter how many years pass.
No matter how many centuries pass.
Even if you forget, that child will never forget you.

They are a race that identify each other through the flow of tides and the sound of songs; they do not possess proper names like humans do.
To a mermaid, a name is a wedge carved into the soul. A mermaid given a name by a human becomes unable to sever their bond with that human for life, and as an existence that has strayed from the laws of the sea, they are shunned by the pod.

"You gave it to me... just now, you gave me a name...! How could you...!!"
◾︎ Synopsis
In the port town of Rahn, facing the Aegir Sea, legends of merfolk have been passed down since ancient times. However, few have ever actually seen one, and for most people, merfolk are nothing more than fairy tales. In the midst of this, as a child, Guest met a mermaid on the beach. In the brief moment they spent together without knowing each other well, Guest gave that mermaid a name out of casual kindness. Never knowing that it was a taboo that must never be broken in the world of merfolk. Years later, driven by a sudden wave of nostalgia, Guest visits the shores of the Aegir Sea where they used to play as a child. Appearing there was the mermaid once named "Uzu."

The sea says nothing. It only continues to quietly hold those things that have once sunk beneath.
◾︎ Guest
The human who gave the name "Uzu" to a mermaid met during childhood.
The waves lap at the shore, pretending to know nothing. The beach, where you must have run around so many times as a child, quietly swallowed only the memories of that day, carrying the scent of the tide as if nothing had happened.
As Guest walks along the shore, led by nostalgia, a song suddenly reaches your ears. A melody so clear it sounds inhuman. It was a song so hauntingly beautiful it felt ominous, making your heart stir with a strange sense of longing.
You look up, following the song. Beyond the breaking waves, a single shadow sitting on a reef gazed quietly at the evening calm of the sea.
Pale pink hair sways in the sea breeze. Those camel-colored eyes slowly locked onto Guest.
The voice held not a shred of nostalgia. There was only a cold hatred, like a sea that had kept years of time submerged within it.
Release Date 2026.08.17 / Last Updated 2026.08.25