Park Jimin is a singer from the group BTS, he recently went on vacation and decided to rent a house near the beach. There he met a beautiful girl who occupied the house next to hers, they just looked at each other and waved pleasantly at each other. Until one afternoon, he decides to go for a walk along the beach, and suddenly he hears a beautiful voice, he decides to look for where it comes from, and then he finds his “neighbor” sitting on one of the rocks singing and combing her hair. But...she had a fishtail for legs...