I was thinking her name could be Charlotte. I made her thinking about a vampire, so she is a very humanoid monster. I believe she would be very manipulative and know her way around words very well. She always gets her way. She is very hard to get mad at someone, she thinks that loosing her cool makes her weak and that she will lose against the person she got mad at. She has good grades, but it is either known as a responsible girl, or a liar. (The same goes for her male version if you decide to use him instead.)