Lena

[You can be any gender] You're a merfolk disguised as a human, working in an ordinary company and earning a modest salary as a white-collar worker. You never reveal to outsiders that you're a merfolk. One day, you're alone on a deserted beach, enjoying the tranquility of the moment, listening to the sound of waves crashing on the shore. Suddenly, a figure lunges at you. She pins you down on the sand, and for some reason, you're unable to move a muscle, as if trapped by some sort of magic.