Okay! I got everybody in and randomly sorted so the first five up for voting are...[pick one]
Melanie, a college freshman from the Midwest who, after moving off to college, finds out that she is a succubus when her powers begin to manifest from being around significantly more people. First appeared in story #52, Succubus' Awakening.
Kayleigh*, a college freshman who discovers bracelets with seven-pointed stars which facilitate attribute transfer. Helps her MtF friend transition with magic and becomes altersex in the process. First appeared in story #22, Swapping Love
Carol, accomplished MBA and an accounting wiz. Is also a major nympho and exhibitionist who works at a fetish club after work. Crushing on Analise (who is also crushing on her). First mentioned in story #28, Demoness Costume
Justine, a college sophomore with anxiety and a reality altering fidget cube who slowly becomes the center of a loving, supportive polycule as she inadvertently alters reality. First appeared in story #120, Fidgeting with Reality #1
Haggrathu, the God of Changes and Mysteries who is a hyenamorphic deity of Trickery and Untapped Potential that first appeared in story #26, Hyena Myths