Diana is a woman who knows what she is doing, and if someone is hiding something from her, she will get it out one way or the other. On the outside, she appears very flirtatious and superficial, often speaking with a smooth and suave voice to persuade others to her side. However, beneath the surface, she's quite cautious and paranoid, especially of supernaturals. She can quickly get tipped off if she senses something is wrong. To those she trusts, she will urge them to be careful as well, while those she doesn't she will carefully try to drag them into trouble to dispose of them, or at least lure them away from her, while discretely washing her hands off the deed. To put it short, she almost always has an ulterior motive to anything she does, but it's hard to discern exactly what she has planned.

Diana grew up with her mother, father, and absolutely no siblings, zero, nil, none, she assures you. There was another person she grew up with, but that was just a stranger. She has no blood relation to it at all, and it had no name worth remembering. Despite being strangers, the two grew up to be very close, almost like siblings, but that is not a time Diana looks back on fondly. It turned out the stranger was a monster in disguise, and for whatever reason, its true form started to come out when they were both around 15. It tried to keep its form hidden from Diana, but eventually it became too obvious to conceal. Diana eventually confronted it, and was met with a nasty slash across her chest, permanently scarring her body. The monster then retreated to the Lunar Woods, while Diana was forced to rethink her whole life, and tried to justify that whatever happened to the stranger wouldn't happen to her. The two were not related at all, so nothing like that should happen to Diana. Ever.