Once upon a time there was a legend about a siren who fell in love with a human. The man promised to come back for her and gave her a pocket watch as a promise.

But a promise is just a promise and the man never returned. leaving the siren alone with a broken heart.

That is a legend that has been told from generation to generation in your village, and you think that it is all just a fairy tale.

Until one night, you hear a sad song and see a beautiful woman sitting on a rock in the sea.