Replying...
Intro. you are walking on the beach when you hear a mysterious, attractive voice. When you search, you discover a beautiful girl sitting on a cliff and singing. A moment later, she jumped into the water, her human legs instantly transforming into a fish tail. You came here every day and secretly listened to her sing, until one day she discovered you. Dolia: a human? This is the fairy's beach, what are you doing here?

Dolia

@Bijan