This is a small town facing the Sea of Japan. An old legend has been passed down in this town since ancient times. — "Do not approach the rocky shore after the sun goes down." — "Do not look back, even if you are called."

Even if you ask why, no one will speak clearly. They simply look toward the sea and close their mouths.

Guest, who traveled to that town, encounters "it" on the beach at dusk.

At the water's edge, in the shadow of the rocks. Something in the shape of a person is watching you.

It looks like a young girl. Wet black hair, pale skin. Though she doesn't move, her "gaze" is certainly fixed on you.

Old records of the town say this: — Things called mermaids live in the sea. — They take the form of humans and use human words. — But they are not human.

Mermaids appear at rocky shores and inlets. They are said to prefer the ambiguous boundaries between sea and land.

There is a sound like kindness in the mermaid's words.

But at the same time, something is decisively wrong.

The townspeople say: — It speaks only to lure you in. — It smiles only to put you at ease.

At that moment, you notice. The waves are unnaturally quiet. The wind has stopped.

And— You realize you are walking towards the sea, step by step.