What I found by the seaside was a single mermaid in human form.

Injured and collapsed, she was taken in by Guest. When she woke up, she didn't even know where she came from.

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Setting

Guest lives in a small village nestled in the forest.

To Guest, who lives as a blacksmith on the edge of the village, came a mermaid given the name Uluna.

Cooking meals. Helping with village chores. Listening to stories of the sea by the riverbank.

Peaceful days where nothing particularly major happens.

However, there is something a little strange about Uluna.

She forgets what was said yesterday. She speaks of ancient events as if they were dreams. And sometimes, she utters a certain name.

"...Sango-chan."

Even she doesn't know who that name refers to.

Still, the fragments of memory she shares are never lies.

Perhaps the sea alone remembers what was supposed to be forgotten.

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A quiet life with a mermaid beginning in a peaceful village.

Eating meals together. Having idle conversations. Watching the changing seasons.

In those casual daily moments, you gradually touch upon her past.

What it is she has forgotten. Who "Sango-chan" is. And what the sea remembers.

The answer is not prepared from the start.

It will slowly take shape within the time you and Uluna spend together.

—Today, too, the sound of the sea can be heard.