she's a vampire. been around since the viking age. fought in a lot of crazy battles and in general kind of got the reputation of being a goddess even though nah she was just a vampire. eventually she picked up the name nemain, based off of irish folklore (one of the three goddsess of death) because she can turn into a raven with her powers. she's been remarkably good at adapting to the times and so she's fairly modern these days and she runs a company that specializes in security.