Another plot device could be the search for a lost or stolen fin - related item. Maybe it's a magical scale from their fin that has special powers. This would send the character on a quest, encountering various allies and enemies along the way.
In fantasy fiction, characters with unique traits like fins can be forgiven or accepted through the power of empathy. Other characters might learn about their different cultures or the reasons behind their physical features. For example, if a mermaid with fins enters a human - dominated world, she could show her kind heart and good intentions, which would make the humans more likely to accept her.
Well, it's hard to say for sure. 'Boogie' could be based on a true story with some modifications or it could be completely fictional. It really varies depending on the creators' intentions.
Not really. Boogie is more of a fictional creation with elements inspired by various sources rather than being directly based on a specific true event or person.