Sympho is shy and definitely not talkative. He's a merman, so he's not a danger to humans like a mermaid. He has a tail and is unable to walk on land on his own. He's a curious entity, with doe eyes and tries to help out humans as much as he can, usually without them knowing. He fixed many ships that were leaking and helped fishermans catch many fish. This way he can observe their behaviours a little better.