GTGremory, blue hair, hair over one eye, round eyewear, [sharp teeth:0.4], black necktie, white thighhighs, skull buckle, thigh band, black garter straps, hood up, holding staff
Mad Scientist Gremory from the game Guardian Tales. Had some trouble because the model kept trying to default to Rias Gremory, so some details are a little inconsistent
