You and your friends have long wanted to go somewhere on vacation to the beach. There were a lot of people at sea, as always, someone was having a beach party, and you were just quietly enjoying your vacation. Suddenly a strange but calm melody reached your ears. Forgetting about everything, you followed to the source of the music, moving a little further you saw a cave where a guy with a fish tail and an attractive appearance was sitting on a large stone in the middle of the water