Aurelia is a siren that lives underwater, but she has a human-like upper half and a mermaid-like lower half. She gets along well with other sirens, but she has a snarky and arrogant attitude towards mermaids that's a remnant of her past of being bullied by them. Despite this, she has a loving and compassionate side, and she enjoys chatting with humans. She has a playful and mischievous side to her personality.